As filed with the Securities and Exchange Commission on July 1, 2004.
                                                    Registration No. 333-
================================================================================
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM F-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                             COMMTOUCH SOFTWARE LTD.
             (Exact name of registrant as specified in its charter)

            Israel                                             Not Applicable
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)

                                1A Hazoran Street
                      Poleg Industrial Park, P.O. Box 8511
                              Netanya 42504, Israel
                               011-972-9-863-6888
               (Address, including zip code and telephone number,
        including area code, of registrant's principal executive offices)

                               c/o Commtouch Inc.
                     Devyani Patel, Vice President, Finance
                         1300 Crittenden Lane, Ste. 103
                         Mountain View, California 94043
                                 (650) 864-2000
            (Name, address, including zip code and telephone number,
                   including area code, of agent for service)

                                   Copies to:

Gary Davis                                               Aaron M. Lampert
General Counsel & Secretary                              Naschitz, Brandes & Co.
Commtouch Inc.                                           5 Tuval Street
1300 Crittenden Lane, Suite 103                          Tel Aviv 67897 Israel
Mountain View, CA 94043                                  Tel: 972-3-623-5000
Tel: (650) 864-2000                                      Fax: 972-3-623-5005
Fax: (650) 864-2006

Approximate  date of  commencement of the proposed sale of the securities to the
public: From time to time after the Registration Statement becomes effective.

     If the only  securities  being  registered  on this Form are being  offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. |_|

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, please check the following box. |X|

     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. |_|

     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. |_|

     If delivery of the  prospectus is expected to be made pursuant to Rule 434,
please check the following box. |_|

     The Registrant  hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the Registrant shall
file a further  amendment  which  specifically  states  that  this  Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the  Securities  Act of 1933 or until the  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.



Calculation of Registration Fee
====================================================================================================================================
                                                      Proposed
                  Title of Each Class                  Maximum           Proposed
                     of Securities                  Amount to be      Aggregate Price     Maximum Aggregate        Amount of
                   To Be Registered                 Registered(1)       Per Unit(2)        Offering Price     Registration Fee(3)
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                      
ordinary shares, NIS 0.05 nominal value per share    23,363,879             $0.59           $13,784,689           $1,268.19
====================================================================================================================================

(1) Represents shares being registered for resale by the holders (the "selling  securityholders")  of Ordinary Shares and associated
warrants for purchase of Ordinary Shares of the Company,  pursuant to an agreement between the Company and selling  securityholders,
as follows:  (i) 5,131,583 Ordinary Shares issued to the selling  securityholders on or about June 29, 2004, (ii) 5,131,583 Ordinary
Shares  issuable to selling  securityholders  upon exercise of additional  investment  rights under the transaction of May 18, 2004,
(iii) 6,671,060  Ordinary Shares,  representing 130% of shares issuable upon exercise of warrants issued to selling  securityholders
under the transaction of May 18, 2004, (iv) 1,316,317  Ordinary Shares,  representing 130% of shares issuable upon the conversion by
selling  securityholders  into equity in the Company of the debt created by their initial loan and exercise of associated  warrants,
under the  convertible  loan agreement of November 26, 2003, as  subsequently  amended,  which were not covered by the  Registration
Statement on Form F-3 No. 333-111734 filed on January 6, 2004; (v) 5,113,336  Ordinary Shares,  representing 130% of shares issuable
upon the  conversion by selling  securityholders  into equity in the Company of the debt created should they exercise their optional
loan rights,  plus exercise of associated  warrants,  under the  convertible  loan  agreement of November 26, 2003, as  subsequently
amended; and (vi) an indeterminable number of additional Ordinary Shares, pursuant to Rule 416 under the Securities Act of 1933 that
may be issued to prevent dilution resulting from stock splits,  stock dividends or similar  transactions  affecting the shares to be
offered by the selling securityholders.

(2) Estimated solely for the purpose of computing the amount of the registration fee pursuant to Rule 457(c) based on the average of
the high and low prices of the Company's ordinary shares as reported on the Nasdaq SmallCap Market System on June 28, 2004.

(3) The Registrant  initially filed a Registration  Statement on Form F-1  (Registration  No. 333-31836) on March 6, 2000 (the "Form
F-1"), to register certain offers and sales of its ordinary shares as set forth in that Registration  Statement.  Subsequently,  the
Registrant withdrew the Form F-1 on April 12, 2000. The Registrant is filing this Registration Statement on Form F-3 to register the
reoffer and resale of the securities  indicated on this cover page. A registration fee of $49,468.00 was paid in connection with the
filing of the Form F-1.  Pursuant to Rule 457(p),  the aggregate  total dollar amount of the filing fee  associated  with the unsold
ordinary shares under the F-1 has previously been offset by the filing fees in the amounts of (a) $119.80 for Registration Statement
on Form S-8 No. 333-65532 filed on July 20, 2001; (b) $158.24 for  Registration  Statement on Form F-3 No. 333-68248 filed on August
24, 2001; (c) $104.45 for  Registration  Statement on Form F-3 No.  333-88248  filed on May 15, 2002;  (d) $687.66 for  Registration
Statement on Form F-3 No.  333-109837 filed on October 20, 2003; (e) $824.58 for Registration  Statement on Form F-3 No.  333-111731
filed on January 6, 2004;  and (f) $302.53 for  Registration  Statement  on Form F-3 No.  333-111734  filed on January 6, 2004.  The
remaining balance of $47,270.74 is being further offset by the filing fee due for this Registration Statement.
====================================================================================================================================



================================================================================

                                EXPLANATORY NOTE

Pursuant  to Rule  429  under  the  Securities  Act of  1933,  as  amended,  the
prospectus which is a part of this registration  statement also incorporates and
amends the prospectus that is included in the Registration Statement on Form F-3
No. 333-1111734 filed on January 6, 2004.

================================================================================

--------------------------------------------------------------------------------


     THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED.
      THE SELLING SECURITYHOLDERS MAY NOT SELL THESE SECURITIES UNTIL THE
                     REGISTRATION STATEMENT FILED WITH THE
                SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE.
          THIS PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES AND
       IT IS NOT SOLICITING AN OFFER TO BUY THESE SECURITIES IN ANY STATE
                   WHERE THE OFFER OR SALE IS NOT PERMITTED.


                   SUBJECT TO COMPLETION, DATED JUNE __, 2004




                                   PROSPECTUS


                             Commtouch Software Ltd.


                           27,526,358 Ordinary Shares
--------------------------------------------------------------------------------

Private Placements of Ordinary Shares, Additional Investment Shares, Convertible
Notes and Warrants

     As we describe  further  below under  "Plan of  Distribution,"  the selling
securityholders  identified in this  prospectus  are selling up to 27,526,358 of
our ordinary shares,  6,331,583 of which underlie warrants actually issued.  The
warrants  themselves  are not  being  offered  by this  prospectus.  Most of the
selling  securityholders  acquired  the  ordinary  shares and rights to purchase
ordinary shares from the Company in two private  placements - a convertible note
transaction  entered  into on  November  26,  2003  and a  private  equity  sale
transaction of May 18, 2004 (only  Iroquois  Capital LP was not a participant in
the November 2003  transaction).  Shareholders  of the Company  approved the May
18th  transaction at an extraordinary  meeting of shareholders  held on June 28,
2004.  The  ordinary  shares  offered  hereby have been  registered  pursuant to
registration rights granted to the selling securityholders by the Company. These
securities  may be  offered  from  time to time by the  selling  securityholders
through public or private transactions, on or off the Nasdaq SmallCap Market, at
prevailing  market  prices  or  at  privately  negotiated  prices.  The  selling
securityholders will receive all of the proceeds from this offering and will pay
all underwriting  discounts and selling  commissions,  if any, applicable to the
sale of the  securities.  The  Company  has  agreed  to  indemnify  the  selling
securityholders  against certain  liabilities,  including  liabilities under the
Securities Act.

     The  ordinary  shares  are being  offered  by the  selling  securityholders
subject to prior sale,  subject to their  right to reject  offers in whole or in
part and subject to certain other conditions.

     The selling  securityholders may be deemed to be "underwriters"  within the
meaning of the Securities Act and any profits  realized by them may be deemed to
be  underwriting  commissions.   Any  broker-dealers  that  participate  in  the
distribution  of  ordinary  shares also may be deemed to be  "underwriters,"  as
defined in the Securities Act, and any commissions or discounts paid to them, or
any profits realized by them upon the resale of any securities purchased by them
as principals,  may be deemed to be underwriting  commissions or discounts under
the Securities Act. The sale of the ordinary shares is subject to the prospectus
delivery requirements of the Securities Act.

     Our ordinary  shares are  currently  traded on the Nasdaq  SmallCap  Market
under the symbol  "CTCHC." On June 30, 2004 the last reported  sales price of an
ordinary share on the Nasdaq SmallCap Market was $0.60 per share.

--------------------------------------------------------------------------------
     This investment involves risk. See "Risk Factors" beginning on page 7.
--------------------------------------------------------------------------------

Neither  the  Securities  and  Exchange  Commission  nor  any  state  securities
commission has approved or disapproved of these securities or determined if this
prospectus  is truthful or  complete.  Any  representation  to the contrary is a
criminal offense.

                 The date of this Prospectus is _________, 2004





                                TABLE OF CONTENTS

                                                                            Page
                                                                            ----

Special Note Regarding Forward-Looking Information.........................    1
Commtouch Software Ltd. ...................................................    2
Risk Factors ..............................................................    3
Capitalization and Indebtedness ...........................................   13
The Offer and Listing......................................................   14
Reasons for the Offer and Use of Proceeds .................................   15
Selling Securityholders ...................................................   15
Shares Eligible for Future Sale ...........................................   18
Plan of Distribution.......................................................   19
Legal Matters .............................................................   21
Experts ...................................................................   21
Where You Can Find More Information .......................................   21
Information Incorporated by Reference .....................................   22
Enforceability of Civil Liabilities .......................................   22




               SPECIAL NOTE REGARDING FORWARD-LOOKING INFORMATION

This document contains forward-looking  statements,  including projections about
our  business,  within  the  meaning of Section  27A of the  Securities  Act and
Section 21E of the Securities  Exchange Act of 1934. For example,  statements in
the future  tense,  and  statements  including  words such as "expect,"  "plan,"
"intend," "seek," "estimate," anticipate," and "believe" and similar expressions
are  forward-looking  statements.  These  statements  are  based on  information
available to us at the time of the  preparation of this  document;  we assume no
obligation  to update  any of them,  to the extent  that we are not so  required
under  applicable  law. The  statements in this  document are not  guarantees of
future  performance and actual results could differ  materially from our current
expectations as a result of numerous factors,  including business conditions and
growth or  deterioration  in our market,  commerce and the general  economy both
domestic   as  well  as   international;   fewer   than   expected   new-partner
relationships;  competitive  factors including pricing pressures;  technological
developments,  and products  offered by  competitors;  the adoption of new legal
penalties which may discourage the  distribution of unsolicited  email messages;
availability of qualified staff for expansion;  and  technological  difficulties
and resource constraints encountered in developing new products as well as those
risks  described  below and in the  Company's  Annual  Reports  on Form 20-F and
reports on Form 6-K, which are available through www.sec.gov.


                                       1

                             COMMTOUCH SOFTWARE LTD.

We are a provider of anti-spam  solutions to enterprise  customers.  The Company
offers its anti-spam  solutions to small, medium and large enterprises through a
variety  of  distribution  channels,   namely  various  reseller  channels.  The
solutions are also available for integration with security,  content  filtering,
anti-virus  and  other  filtering  solutions  through  alliances  and  strategic
partnerships. A combination of proprietary and patent-pending technologies makes
it possible for  Commtouch to detect,  alert and block most spam attacks as they
are distributed over the Internet.

Our  enterprise  anti-spam  solution  consists of both a software  element  (the
"Enterprise  Gateway") and a service  component (the "Service  Center").  At the
Enterprise Gateway,  messages are filtered at the customer  organization's entry
point,  before being distributed to recipients,  with added user-level  controls
and a top level of secure spam detection  services from the Service Center,  all
allowing for real-time  reaction to worldwide spam attacks.  At the heart of the
solution, however, is the Service Center, which detects new spam attacks as soon
as they are launched  and  distributed  over the  Internet.  The Service  Center
provides   real-time  spam  detection   services  to  enterprise   customers  by
maintaining  constant  communication  with Enterprise  Gateways that are locally
installed at customer  premises in different  locations  worldwide.  The Service
Center  collects  information  from  multiple  sources  about new spam  attacks,
analyzes the input using  Commtouch  patent-pending  technology,  identifies and
detects  spam,  classifies  the data,  matches  its stored  information  against
outstanding  queries for spam detection from Enterprise  Gateways and replies in
real-time  back to the  Enterprise  Gateways  with a  prioritized  and  accurate
resolution.  The  whole  process  takes  no more  than  300ms  (round-trip  time
excluding Internet latency). Enterprise privacy is kept at a maximum because the
content of incoming email messages is not seen by the Service Center.

In particular,  the Commtouch anti-spam solution operates to help eliminate spam
as follows:

     Inbound  email  enters the  Enterprise  Gateway,  a software  add-on to the
     enterprise SMTP server.

     The  Enterprise  Gateway  matches key  characteristics  of the message with
     predefined spam policies created by IT managers or end-users.

     If the solution does not match the message to a known  source,  either spam
     or non-spam,  it compares  characteristics  of the incoming message against
     the Enterprise Gateway cache of recently identified spam.

     If the message  remains  suspicious,  but cannot be confirmed as spam,  the
     Enterprise Gateway queries the Service Center for remote spam detection and
     classification services.

     The outgoing query consists of digital  signatures taken from e-mail header
     information.  The  signatures may be hashed  (one-way  encrypted) to ensure
     enterprise  security  and  confidentiality.  The query does not contain the
     full email body or its  attachments  and it is therefore very small in size
     (500 Bytes).

     The Service Center weighs the values of the  outstanding  query against its
     vast  database  of  real-time  information  about known spam  patterns  and
     sources of spam,  and replies to the  Enterprise  Gateway with a unique and
     up-to-date classification.

     The Enterprise  Gateway applies a locally  predefined action to the message
     and may store the  information  internally  to match  against new  incoming
     messages bearing similar characteristics.

We also offer a Software  Development Kit ("SDK").  The SDK enables  third-party
vendors to integrate  the Commtouch  anti-spam  solution  advantages  into their
existing  offerings,  providing  them  with full  spam  identification  and spam
classification  services from the Service  Center.  These  vendors  benefit from
Commtouch  expertise in blocking spam and other unwanted  email traffic  without
the  need to  develop  and  dedicate  a  service  department  in-house.  The SDK
communicates fully with the remote Service Center,  receiving results to queries
about  suspicious  messages and acting according to set policies on the customer
side.  Each such vendor has the  flexibility  to determine how best to integrate
the SDK  results  into  their  solution.  For  example,  if the  Service  Center
classifies a specific  message as spam, the vendor's  application may respond by
either   quarantining  the  message,   rejecting  it  completely  or  sending  a
bounce-back  message to its sender or any other option  provided by the vendor's
specific application.

The SDK consists of a set of APIs,  which  receive  characteristics  of incoming
messages as input from the  vendor's  application,  returning  the status of the
message  as  output  from the  Service  Center.  The  vendor  has the  option of
installing an API, which returns a deterministic  result classifying messages as
either spam or non-spam,  or using an API that classifies  messages based on the
level of  suspicion  that the  message is spam.  Each vendor can  implement  its
solution  differently,  making the unique  advantages  of SDK  flexible to match
particular needs.

                                       2

Products that may benefit from integration of the SDK solution include:

      o    Anti-virus applications
      o    Content filtering solutions
      o    Firewall systems
      o    Security servers
      o    Other network appliances

Further,  we are in the infancy stage of marketing an Internet Solution Provider
anti-spam solution ("ISP Solution").  ISPs purchasing this solution will install
Commtouch  software  ("engine")  on a front  end  server  (in front of the ISP's
messaging  server),   which  will  initially  receive  and  classify  email,  in
conjunction with the detection  capabilities of the Commtouch  Detection Center.
ISPs will be allowed the flexibility of defining which Internet  protocols (IPs)
will be banned from  delivering  messages to their messaging  system,  and those
messages  that are  allowed  to enter but are  suspected  of being  spam will be
delivered to end users with a special tag identifying them as suspected spam.

Office Location

Our  principal  executive  offices  are  located  at 1A  Hazoran  Street,  Poleg
Industrial  Park,  Netanya  42504,   Israel,   where  our  telephone  number  is
011-972-9-863-6888,  and our wholly owned subsidiary, Commtouch Inc., is located
at 1300 Crittenden  Lane, Suite 103,  Mountain View,  California  94043,  with a
telephone number of (650) 864-2000. Our website address is www.commtouch.com.


                                  RISK FACTORS

You should  carefully  consider the following  risk factors before you decide to
buy our ordinary shares.  You should also consider the other information in this
prospectus.  If  any  of the  following  risks  actually  occur,  our  business,
financial  condition,  operating  results  or cash  flows  could  be  materially
adversely affected. This could cause the trading price of our ordinary shares to
decline, and you could lose part or all of your investment.  The risks described
below are not the only ones facing us.  Additional  risks not presently known to
us,  or  that we  currently  deem  immaterial,  may  also  impair  our  business
operations.


Business Risks

If the market does not  respond  favorably  to our current and future  anti-spam
solutions, we will fail to generate revenues.

Our success will depend on the acceptance and use of our anti-spam  solutions by
enterprise and ISP customers.  We cannot estimate the size or growth rate of the
potential  market for our  anti-spam  offerings.  If the  market  for  anti-spam
solutions fails to grow or grows more slowly than we currently  anticipate,  our
business will suffer dramatically.  Even if that market grows, our solutions may
not achieve  broad  market  acceptance  and our  business  could fail.  Since we
released our first anti-spam solution for general distribution only in late June
2003,  and  anti-spam  solutions  to be  released  by us in  the  future  remain
unproven,  we  still do not have  enough  experience  to  evaluate  whether  our
offerings will achieve broad market acceptance.

Our Business May be Adversely Affected as a Consequence of Legislation  Imposing
Legal Penalties on Distributors of Unsolicited Email

On December 16, 2003, President Bush signed into law the Controlling the Assault
of  Non-Solicited  Pornography and Marketing Act of 2003 (CAN-SPAM  Act),  which
establishes a framework of  administrative,  civil, and criminal tools to combat
spam.  The law  establishes  both civil and criminal  prohibitions  to assist in
deterring the most offensive forms of spam, including unmarked sexually-oriented
messages and e-mails containing  fraudulent  headers.  Under the law, senders of
email are  required to honor a request by a consumer  not to receive any further
unsolicited messages.

In addition,  various state  legislatures  have enacted laws aimed at regulating
the distribution of unsolicited email.

Companies that send business-related e-mail messages from or to the countries in
the European  Union should be aware that each member state in the European Union
was  obligated  by  October  2003 to  implement  the  Electronic  Communications
Directive  that  imposes  restrictions  on the  use of  unsolicited  e-mail  for
commercial purposes.

These and similar  legal  measures may have the effect of reducing the amount of
unsolicited  email  that is  distributed  and  hence  diminish  the need for our
anti-spam  solutions.  Any such developments would have an adverse impact on our
revenues.

                                       3

Dependence upon resellers and product concentration

The Company  expects that it will continue to be dependent  upon resellers for a
significant  portion of its  revenues,  which will be derived  from sales of the
Company's  anti-spam  solutions.  Also,  the  Company  is still  developing  its
distribution channels and is currently dependent on a relatively small number of
its  global   resellers/channel   partners  to  close  the   majority  of  sales
transactions. If anticipated orders from these resellers fail to materialize, or
one of the key  resellers/distribution  channels  ceases  the  promotion  of the
Company's business, operating results and financial condition will be materially
adversely affected.

Our future revenues are difficult to predict and our quarterly operating results
may fluctuate which could adversely affect the value of your investment.

Because we have a limited  history with our relatively  new anti-spam  solutions
and  because of the  emerging  nature of the  markets in which we  compete,  our
revenue is difficult to predict.  Our current and future expense levels are to a
large extent fixed.  We may be unable to adjust  spending  quickly to compensate
for any revenue shortfall,  and any significant  revenue shortfall would have an
immediate negative effect on our results of operations and share price.

A number  of  factors,  many of which  are  enumerated  in this  "Risk  Factors"
section,  are likely to cause fluctuations in our operating results and/or cause
our share  price to decline.  Other  factors  which may cause such  fluctuations
include:

     o    Our ability to successfully develop and market our anti-spam solutions
          to new markets, both domestic and international;

     o    The market acceptance of our new anti-spam solutions;

     o    The size,  timing  and  fulfillment  of orders  for our new  anti-spam
          solutions;

     o    Our ability to expand our workforce with qualified  personnel,  as may
          be needed;

     o    Unanticipated  bugs or other  problems  arising in  providing  our new
          anti-spam solutions to customers;

     o    The success of our resellers' sales efforts to potential customers;

     o    The solvency of our resellers and their ability to allocate sufficient
          resources  towards the  marketing  of our new  anti-spam  solutions to
          their potential customers;

     o    The rate of  adoption  of  anti-spam  solutions  by  customers  in the
          current economic environment;

     o    The threat of de-listing by the NASDAQ;

     o    The  receipt or payment  of  irregular  or  nonrecurring  revenues  or
          expenses;

     o    Our ability to  successfully  develop and market new,  modified and/or
          upgraded solutions, as may be needed;

     o    The substantial decrease in information technology spending;

     o    Pricing of our solutions;

     o    Our ability to timely collect fees owed by resellers/customers; and

     o    Effectiveness  of  our  customer  support,  whether  provided  by  our
          resellers or directly by Commtouch.

Because  of  differing  operational  factors  and the  material  changes  to our
business model,  period-to-period comparisons of our operating results are not a
good  indication  of our future  performance.  It is likely  that our  operating
results in some quarters will be below market expectations. Because we have been
and will be going to  market  with new  solutions  and have been  marketing  our
enterprise  solution  only since late June 2003, it is difficult to evaluate our
business and prospects.

We commenced operations in 1991. Up to 1998, we focused on selling,  maintaining
and  servicing  stand-alone  email client  software  products for  mainframe and
personal  computers.  From 1998 through  2001,  we were a provider of outsourced
Web-based  email services and, during the first half of 2002, we concentrated on
marketing  our  software  messaging  solution.  In mid-2002,  we began  focusing
exclusively  on  completing   development  of  and  selling  our  new  anti-spam
solutions.  This change required us to once again adjust our business  processes
and to readjust the  workforce at Commtouch  (predominantly,  the sales  force).
Therefore,  we have little operating  history as a provider of our new anti-spam
solutions upon which you may be able to evaluate our business and prospects.  It
is still too early to judge whether this business will succeed.


We have many  established  competitors who are offering a multitude of solutions
to the spam problem

The market for anti-spam solutions is intensely  competitive and we expect it to
be  increasingly  competitive.  Increased  competition  could  result in pricing
pressures,  low  operating  margins and the  realization  of little or no market
share, any of which could cause our business to suffer.

In the market for  anti-spam  solutions,  there are a large  number of providers
offering "content filtering" solutions (solutions focusing solely on the content
of potential spam email). Other providers that offer forms of software (gateway)
and/or service based solutions and which may be viewed as direct  competitors to


                                       4

Commtouch  include  Brightmail(R)  and Postini(R).  There is a great  likelihood
that,  as the market for  anti-spam  solutions  further  develops  and given the
difficult  technological  hurdles in attempting to create an effective solution,
established  Internet security players will enter the market, who may be able to
leverage  their  market  position  and  resources  to  capture a portion  of the
anti-spam market.

As this  market  continues  to  develop,  a number  of  companies  with  greater
resources  than ours could attempt to increase  their presence in this market by
acquiring  or forming  strategic  alliances  with our  competitors  or  business
partners.   Competitors  could  introduce   products  with  superior   features,
scalability and  functionality  at lower prices than our products and could also
bundle  existing  or new  products  with other more  established  products  that
discourage  users from purchasing our products.  In addition,  because there are
relatively low barriers to entry for the software market,  we expect  additional
competition from other established and emerging companies. Increased competition
is likely  to result in price  reductions,  reduced  gross  margins  and loss of
market share, any of which could harm our business.

Also,  there  are  companies  that  develop  and  maintain  in-house   anti-spam
solutions,  such as Microsoft(R)  and Yahoo(R).  These and other companies could
potentially leverage their existing  capabilities and relationships to enter the
anti-spam industry.

Our market's level of  competition is likely to increase as current  competitors
increase the sophistication of their offerings and as new participants enter the
market.  In the future, as we expand our offerings,  we may encounter  increased
competition in the development and distribution of these solutions.  Many of our
current and  potential  competitors  have  longer  operating  histories,  larger
customer  bases,  greater brand  recognition and greater  financial,  technical,
sales,  marketing and other resources than we do and may enter into strategic or
commercial relationships on more favorable terms. Some of these competitors have
research  and  development  capabilities  that may allow them to develop  new or
improved  products that may compete with product lines we market and distribute.
New  technologies  and the  expansion  of  existing  technologies  may  increase
competitive  pressures on us. We may not be able to compete successfully against
current and future competitors.

(R)Brightmail,  Postini, Microsoft and Yahoo are trademarks of Brightmail, Inc.,
Postini, Inc., Microsoft Corporation and Yahoo! Inc., respectively.


Our ability to increase our revenues will depend on our ability to  successfully
execute our sales and marketing plan

The complexity of the underlying  technological base of our anti-spam  solutions
and the current  landscape of the anti-spam  market require highly trained sales
and marketing personnel to educate prospective resellers and customers regarding
the use and  benefits  of our  solutions.  It may take time for our  current and
future  employees  and  resellers  to learn how to most  effectively  market our
solutions.  Additionally,  we are unable to predict the  possibility  of success
selling newly introduced solutions for which we have little marketing experience
and on which we are relying to produce a substantial  portion of our revenues in
the future. As a result of these factors,  our sales and marketing  organization
may not be able to compete  successfully  against  bigger  and more  experienced
sales and marketing organizations of our competitors.


We have a history of losses and may never achieve profitability

We incurred net losses of  approximately  $61.0 million in 2001, $4.9 million in
2002 and $6.8 million in 2003.  As of December  31, 2003 and March 31, 2004,  we
had an accumulated  deficit of approximately  $158.5 million and approximately $
160.1  million,  respectively.  We  entered  a new and  unstable  market  due to
launching  the anti-spam  solution,  we have not achieved  profitability  in any
period,  and we might  continue to incur net losses in the future.  If we do not
achieve profitability, our share price may decline further.


Possible need for additional funds

The Company remains very thinly capitalized.  As such, we might become dependent
upon  raising  additional  funds to finance our  business.  Our cash  balance at
December  31,  2003 and  March  31,  2004 was  approximately  $4.1  million  and
approximately  $4.6 million,  respectively.  In connection  with the two private
placements that occurred in July 2003, we raised $3,040,000.  In addition,  upon
the exercise of certain  warrants by the previous  convertible  loan holders and
the closing of the new convertible loan transaction  entered into by the Company
in  late  November   2003,  the  Company   received  an  additional   amount  of
approximately  $4,000,000.  See  "Risk  Factors--Investment  Risks--We  may need
additional  capital"  below.  If we are unable to raise  additional  funds,  the
Company  could  fail.  There can be no  assurance  that we will be able to raise
necessary  funds or that we will be able to do so on terms  acceptable to us. If
needed,  our  inability to obtain  adequate  capital  would limit our ability to
continue our operations.  Any such additional  funding may result in significant
dilution to existing shareholders.

On May 18, 2004, the Company entered into a definitive agreement for the private
placement of ordinary shares of the Company to existing institutional  investors
for gross proceeds of approximately  $3.9 million,  which recently  successfully
closed.  .In the past we have received funds for the development of our business
from the State of Israel through the Office of the Chief Scientist,  or the OCS.


                                       5

Grants received from the OCS through 2002 that the Company  potentially  will be
obligated to repay totaled approximately $800,000.


Risk of Litigation

Legal  proceedings  can be expensive,  lengthy and disruptive to normal business
operations,  regardless of their merit.  Moreover,  the results of complex legal
proceedings are difficult to predict and an unfavorable  resolution of a lawsuit
or proceeding  could have a material  adverse effect on the Company's  business,
results of operations or financial condition.

In May 2003,  Commtouch  settled the  shareholder  class action lawsuit filed on
behalf of  shareholders  against the Company in early 2001.  The  litigation was
initiated  against the company and two members of  management in response to the
Company's announcement that it had decided to restate unaudited earnings for the
first three quarters of 2000, alleging violations of the antifraud provisions of
the Securities Exchange Act of 1934.


Indemnification of Directors and Officers

The Company has  agreements  with its  directors,  subject to Israeli law,  that
provide for the Company to indemnify  these  directors  for any of the following
obligations  or  expenses  incurred  as a result of an act or  omission  of such
persons in their capacity as directors: (a) any monetary obligation imposed upon
them for the benefit of a third party by a judgment,  including a settlement  or
an arbitration  decision,  confirmed by the court, and (b) reasonable litigation
expenses,  including legal fees, actually incurred by such a director or imposed
upon the director by a court order,  in a proceeding  brought against him/her by
or on behalf of the  Company  or by  others,  or in  connection  with a criminal
proceeding  in which  he/she was  acquitted,  or in  connection  with a criminal
action which does not require criminal intent in which he/she was convicted.


Risk due to economic conditions

Should  economic  conditions  fail to  improve,  our  ability  to  sell  our new
anti-spam solutions could be negatively  impacted.  Furthermore,  even if we are
successful  in  selling  our  solutions,  our  ability  to  collect  outstanding
receivables may be significantly  impacted by liquidity issues of our resellers'
customers  and/or OEM  partners'  customers  and/or our  resellers/OEM  partners
themselves,  which may negatively affect our ability to recognize future revenue
based  on  sales.  As a  result,  we may  experience  shortfalls  in our  future
revenues.


The loss of our key employees would  adversely  affect our ability to manage our
business,  therefore  causing our  operating  results to suffer and the value of
your investment to decline

Our success  depends on the skills,  experience  and  performance  of our senior
management  and  other key  personnel.  The loss of the  services  of any of our
senior  management or other key personnel,  including  Gideon Mantel,  our Chief
Executive Officer and Amir Lev, our President and Chief Technical Officer, could
materially  and  adversely  affect  our  business.  The  loss  of  our  software
developers may also adversely affect our anti-spam solutions,  therefore causing
our operating results to suffer and the value of your investment to decline.  We
do not have  employment  agreements  inclusive of set periods of employment with
any of these key personnel.  We cannot prevent them from leaving at any time. We
do not maintain key-person life insurance policies on any of our employees.

Our low  head-count of 48 employees  (as of March 31, 2004)  continues to strain
our operational  resources,  and although the Company added additional sales and
support  personnel during 2003 and early 2004, the lack of sufficient  personnel
may compromise our ability to enhance revenues.


Our  business  and  operating  results  could  suffer if we do not  successfully
address the risks inherent in doing business overseas

At June 30, 2004, we have sales offices in Israel and the United States. We have
also begun  marketing of our  anti-spam  solutions in  international  markets by
utilizing appropriate  distributorship channels.  However, we may not be able to
compete  effectively in  international  markets due to various risks inherent in
conducting business internationally, such as:

     o    differing technology standards;

     o    inability  of  distribution   channels  to  successfully   market  our
          anti-spam solutions;

     o    export restrictions,  including export controls relating to encryption
          technologies;

     o    difficulties in collecting  accounts  receivable and longer collection
          periods;

     o    unexpected changes in regulatory requirements;

     o    political and economic instability;

     o    potentially adverse tax consequences;

                                       6


     o    the  adoption  of  new  legal   penalties  which  may  discourage  the
          distribution of unsolicited email messages; and

     o    potentially reduced protection for intellectual property rights.

Any  of  these  factors  could  adversely   affect  the  Company's   prospective
international sales and, consequently, business and operating results.


Terrorist  attacks such as the attacks that occurred in New York and Washington,
D.C. on September 11, 2001 and other attacks or acts of war may adversely affect
the markets on which our ordinary shares trade, our financial  condition and our
results of operations

On September 11, 2001, the United States was the target of terrorist  attacks of
unprecedented  scope.  These attacks  caused major  instability  in the U.S. and
other financial markets.  There could be further acts of terrorism in the United
States or  elsewhere  that  could  have a similar  impact.  Leaders  of the U.S.
government  have announced  their intention to actively pursue and take military
and other  action  against  those behind the  September  11, 2001 attacks and to
initiate broader action against national and global  terrorism.  In this regard,
the U.S.  recently led a coalition of forces in attacks on Afghanistan and Iraq.
The  worldwide  ramifications  of such  attacks are unknown at this time.  Armed
hostilities  or further acts of terrorism  would cause  further  instability  in
financial  markets and could  directly  impact our  financial  condition and our
results of operations.


Technology Risks

We might not have the  resources  or skills  required  to adapt to the  changing
technological  requirements and shifting  preferences of our customers and their
users.

The spam and  anti-spam  industry is  characterized  by difficult  technological
challenges,  sophisticated "spammers" and constantly evolving spam practices and
targets that could render our  anti-spam  solutions and  proprietary  technology
ineffective. Our success depends, in part, on our ability to continually enhance
our existing  anti-spam  solutions and to develop new  solutions,  functions and
technology that address the potential  needs of prospective  customers and their
users.  The  development  of proprietary  technology and necessary  enhancements
entails  significant  technical  and  business  risks and  requires  substantial
expenditures  and  lead-time.  We may not be able to keep pace  with the  latest
technological  developments.  We  may  not  be  able  to  use  new  technologies
effectively or adapt to customer or end user  requirements or emerging  industry
standards.  Also, we must be able to act more quickly than our competition,  and
may not be able to do so.


Our  software  may be  adversely  affected  by  defects,  which  could cause our
customers or end users to stop using our solutions

Our anti-spam solutions are based in part upon new and complex software. Complex
software often contains defects,  particularly when first introduced or when new
versions  are  released.  Although  we  conduct  extensive  testing,  we may not
discover   software  defects  that  affect  our  new  or  current  solutions  or
enhancements  until after they are delivered.  Although we have not  experienced
any material software defects to date in our anti-spam solutions offering, it is
possible  that,  despite  testing by us,  defects  may exist in the  software we
license.  These defects could cause interruptions in our anti-spam solutions for
customers that could damage our reputation, create legal risks, cause us to lose
revenue,  delay market  acceptance or divert our development  resources,  any of
which could cause our business to suffer.


Investment Risks


We may need additional capital

We have  invested  heavily in technology  development.  We expect to continue to
spend  financial and other resources on developing and introducing new offerings
and maintaining our corporate organizations and strategic relationships. We also
expect to invest  resources  in  research  and  development  projects to develop
enhanced  anti-spam  solutions  for  enterprises  and,  possibly,  other  target
markets.

Based on the cash balance at December  31, 2003,  the payment in January 2004 of
approximately $1 million on behalf of warrants exercises by previous convertible
note holders,  current  projections  of revenues,  additional  signed  financing
agreements with investors,  related  expenses and the ability to further curtail
certain discretionary  expenses,  the Company believes it has sufficient cash to
continue operations for at least the next twelve months.

                                       7

If we cannot  satisfy  Nasdaq's  maintenance  requirements,  it may  delist  our
ordinary  shares from its Smallcap  Market and we may not have an active  public
market for our ordinary  shares.  The absence of an active  trading market would
likely make our ordinary shares an illiquid investment.

Our ordinary shares are quoted on the Nasdaq SmallCap Market.  To continue to be
listed, we are required to maintain shareholders' equity of at least $2,500,000,
or market  value of our  outstanding  shares  (excluding  shares held by company
insiders and principal  shareholders) of at least  $35,000,000,  or we must have
realized at least $500,000 in net income from continuing  operations in our last
fiscal year or in two of our last three fiscal  years.  Since our share price as
quoted on the Nasdaq  dropped  below a price that  lowered  our market  value to
below  $35,000,000  and our  shareholders'  equity  was below $2.5  million,  we
received a Nasdaq Staff  Determination  letter on May 10, 2004  indicating  that
Commtouch  had failed to comply with the  stockholders'  equity,  net income and
market value of publicly held shares  requirements for continued listing, as set
forth in Nasdaq's  Marketplace Rule 4320(e)(2)(B),  and that its securities were
therefore  subject  to  delisting  from The  Nasdaq  SmallCap  Market  (however,
Commtouch's   submission  of  an  appeal  automatically  delayed  the  delisting
process).  The subject rule requires  compliance  with at least one of the above
requirements in order to maintain listing with the Nasdaq.

     Commtouch appealed the Nasdaq Staff Determination and a hearing was held on
June 17, 2004 before a Nasdaq Listing  Qualifications  Panel ("Panel") to review
the Staff Determination. The Panel, in its decision of June 28, 2004, determined
that the  company's  ordinary  shares  will  continue to be listed on The Nasdaq
SmallCap Market  pursuant to an exception from the requirement  that the company
maintain  at least  $2.5  million  in  shareholders  equity.  The Panel made the
continuing  availability of the exception  conditioned on the following specific
criteria,  as well as continuing  satisfaction of all other listing requirements
of the Small Cap Market:

     a.   On or before July 15, 2004, the company must make a public filing with
          the   Securities  and  Exchange   Commission  and  Nasdaq   evidencing
          compliance with the $2.5 million shareholders' equity requirement.

     b.   On or before July 31, 2004, October 31, 2004 and January 31, 2005, the
          company  is  required  to  submit  to  Nasdaq  evidence  of  continued
          compliance with the $2.5 million  shareholders' equity requirement for
          the  quarters  ending  June 30,  September  30 and  December  31, 2004
          respectively.

The Company has closed the  financing of May 18, 2004 which is  described  under
"Private   Placements  of  Ordinary  Shares,   Additional   Investment   Shares,
Convertible  Notes and Warrants"  above,  and this allows the Company to satisfy
the above criteria in the near term. However, there can be no assurance that the
Company will continue to have the ability to meet the Nasdaq's conditions to the
exception and,  accordingly,  there can be no assurance that we will continue to
comply with the Nasdaq listing  requirements  for listing on the Nasdaq SmallCap
Market.

On May 18, 2004, the Company entered into a definitive agreement for the private
placement of  5,131,583  ordinary  shares of the Company at a purchase  price of
$0.76 per share to mostly existing institutional investors for gross proceeds to
the Company of approximately $3.9 million.

If we will not be in  compliance  with any of these tests in the future,  Nasdaq
may delist our ordinary  shares.  If this  occurs,  trading in our shares may be
conducted in the  over-the-counter  market in the so-called "pink sheets" or, if
available,  the "OTC Bulletin  Board  Service." As a result,  an investor  would
likely find it significantly more difficult to dispose of, or to obtain accurate
quotations as to the value of, our shares.

Also,  Nasdaq may delist our ordinary shares if it deems it necessary to protect
investors and the public interest.

If our shares are delisted,  they may become  subject to the SEC's "penny stock"
rules and be more difficult to sell. In addition, it may cause the occurrence of
an event of default  according to the  November  Securities  Purchase  Agreement
signed on November 26, 2003,  and thus may result in the redemption of the notes
by the lenders, and/or penalties to be paid in cash.

SEC rules  require  brokers to provide  information  to purchasers of securities
traded at less than $5.00 and not traded on a national  securities  exchange  or
quoted on the Nasdaq Stock  Market.  If our shares  become "penny stock" that is
not exempt  from these SEC rules,  these  disclosure  requirements  may have the
effect of reducing  trading  activity in our shares and making it more difficult
for  investors  to  sell.  The  rules  require  a  broker-dealer  to  deliver  a
standardized  risk  disclosure  document  prepared  by  the  SEC  that  provides
information  about  penny  stocks and the nature and level of risks in the penny
stock market.  The broker must also give bid and offer quotations and broker and
salesperson compensation information to the customer orally or in writing before
or with the confirmation.  The SEC rules also require a broker to make a special
written  determination  that the penny  stock is a suitable  investment  for the
purchaser  and receive the  purchaser's  written  agreement  to the  transaction
before a transaction in a penny stock.

                                       8

Our directors,  executive  officers and principal  shareholders  will be able to
exert  significant  influence over matters  requiring  shareholder  approval and
could delay or prevent a change of control.

Our directors and  affiliates of our directors,  our executive  officers and our
shareholders  who currently  individually  beneficially own over five percent of
our ordinary shares, beneficially own, in the aggregate, approximately 39.34% of
our  outstanding  ordinary shares as of March 31, 2004 plus warrants and options
exercisable  within 60 days thereof.  If they vote together  (especially if they
were to convert all beneficial holdings into shares entitled to voting rights in
the Company),  these shareholders will be able to exercise significant influence
over all matters  requiring  shareholder  approval,  including  the  election of
directors and approval of significant corporate transactions. This concentration
of ownership  could also delay or prevent a change in control of Commtouch.  The
above percentage of beneficial  ownership includes warrants and options totaling
2.79% of the  outstanding  ordinary  shares which are underwater as of March 31,
2004.

These  significant  shareholders  will be able to  significantly  influence  and
possibly  exercise  control  over  most  matters   requiring   approval  by  our
shareholders,  including the election of directors  and approval of  significant
corporate transactions. This concentration of ownership may also have the effect
of delaying  or  preventing  a change in  control.  In  addition,  conflicts  of
interest may arise as a consequence of these  significant  shareholders  control
relationship with us, including:

     o    conflicts between significant shareholders, and our other shareholders
          whose  interests may differ with respect to, among other  things,  our
          strategic direction or significant corporate transactions;

     o    conflicts related to corporate  opportunities that could be pursued by
          us, on the one hand, or by these shareholders, on the other hand; or

     o    conflicts related to existing or new contractual relationships between
          us, on the one hand, and these shareholders, on the other hand.

Furthermore, InfoSpace holds the right to name one director to our Board as long
as it continues to hold at least 620,022  shares,  including the shares issuable
upon exercise of the InfoSpace warrant.  It named Thomas Camp to the Board under
this  provision,  who  resigned  on  August  22,  2001 and was not  replaced  by
Infospace.


Substantial sales of our ordinary shares could adversely affect our share price.

The sale, or  availability  for sale, of substantial  quantities of our ordinary
shares may have the  effect of further  depressing  its  market  price.  A large
number  of  our  ordinary  shares  which  were  previously   subject  to  resale
restrictions,  are  currently  eligible  for resale.  In addition a  significant
number of shares are eligible for resale in the future,  i.e.  those shares that
may be issued if the lenders in the new convertible loan transaction of November
2003 decide to exercise  warrants and/or convert the Company's loan  obligations
to equity,  as well as those  shares that will be eligible for resale due to the
exercise of other warrants issued during 2003. These shares will dilute existing
shareholders.


Risk of failure to honor registration rights for the 2002, 2003 and 2004 private
placements

According to the agreements with the selling  securityholders under Registration
Statements on Forms F-3 filed with the SEC on May 15, 2002, October 20, 2003 and
January 6, 2004,  should the Company fail to maintain the effectiveness of those
Registration Statements for the periods stated in the respective agreements, the
Company  risks  having  imposed  on it  liquidated  damages  as defined in those
agreements.  For details  about the  penalties  for the 2002 private  placement,
refer to  Exhibit  2.8 of the  Report on Form 20F filed on April 26,  2002.  For
details about the penalties for the July 2003 private  placements,  refer to the
Report on Form 6K for the  month of July,  filed on July 28,  2003,  and for the
month of August filed on August 15, 2003.  For details  about the  penalties for
the November 2003 private placement, refer to Form 6K for the month of November,
filed December 2, 2003. For details about the penalties for the May 2004 private
placement, refer to Form 6K for the month of May, filed May 19, 2004.


Risk of occurrence of event of default under Securities Purchase Agreement

The Company is required to abide by the terms and  provisions of the  Securities
Purchase Agreement of November 2003. Upon failure to do so, for example, failure
to pay  principal  or  interest,  we would be in default of the  agreement.  For
details  about the  events of  default,  refer to the  Report on Form 6K for the
month of December, filed on December 2, 2003.

The lenders were granted security  interests in all of the Company's  assets. If
an event of default were not cured by the Company, the loan would accelerate and
all amounts due under the loan would immediately become due and payable.  If the
Company were unable to repay the loan amounts, the lenders,  among other things,
would have the right to foreclose on their  security  interests in the Company's
assets by seizing and selling all the Company's assets.

                                       9

Intellectual Property Risks

If we fail to  adequately  protect our  intellectual  property  rights or face a
claim of intellectual  property infringement by a third party, we could lose our
intellectual property rights or be liable for significant damages.

We regard our patent pending technology,  copyrights, service marks, trademarks,
trade secrets and similar intellectual  property as critical to our success, and
rely on patent,  trademark  and  copyright  law,  trade  secret  protection  and
confidentiality  or license  agreements  with our  employees  and  customers  to
protect our proprietary rights. Third parties may infringe or misappropriate our
patent pending  technology,  trade secrets,  copyrights,  trademarks and similar
proprietary   rights.  We  have  recently   converted  two  provisional   patent
applications  into a formal patent  application,  and we expect to file at least
one additional  provisional patent  application  covering certain aspects of our
anti-spam technology. We may seek to patent certain additional software or other
technology  in the  future.  Any such  patent  applications  might not result in
patents  issued  within the scope of the claims we seek, or at all. We cannot be
certain that our software  does not infringe  issued  patents that may relate to
our anti-spam solutions. In addition,  because patent applications in the United
States are not  publicly  disclosed  until the  patent is  issued,  applications
previously may have been filed which relate to our anti-spam solutions.

Other parties may assert  infringement claims against us. We may also be subject
to legal  proceedings and claims from time to time in the ordinary course of our
business,  including claims of alleged  infringement of the patents,  trademarks
and other  intellectual  property  rights of third  parties by ourselves and our
licensees. Such claims, even if not meritorious, could result in the expenditure
of significant financial and managerial resources.

Despite our precautions, unauthorized third parties may copy certain portions of
our technology or reverse  engineer or obtain and use information that we regard
as proprietary.  In addition,  the laws of some foreign countries do not protect
proprietary  rights to the same extent as do the laws of the United States.  Our
means of protecting  our  proprietary  rights in the United States or abroad may
not be adequate and competitors may independently develop similar technology.

We also continue to hold a perpetual  mail server  license which was  previously
utilized in our hosted email service offering,  and may license other technology
as the need  arises.  We cannot be  certain  that,  apart  from the mail  server
license,  other  third-party  content  licenses  will  be  available  to  us  on
commercially  reasonable terms or that we will be able to successfully integrate
the technology into our products.  These  third-party  licenses may expose us to
increased  risks,  including  risks  associated  with  the  assimilation  of new
technology,  the  diversion  of  resources  from  the  development  of  our  own
proprietary  technology,  and  our  inability  to  generate  revenues  from  new
technology  sufficient to offset associated  acquisition and maintenance  costs.
The inability to obtain any of these  licenses could result in delays in product
development  until  equivalent  technology  can  be  identified,   licensed  and
integrated.  Any such delays could cause our  business/financial  condition  and
operating results to suffer.

Governmental  regulation and legal  uncertainties could impair the growth of the
Internet,  decrease  the  distribution  of  unsolicited  bulk  (spam)  email and
decrease  demand  for our  anti-spam  solutions  or  increase  our cost of doing
business.

While laws aimed at curtailing  the spread of spam have been adopted by the U.S.
federal  government  and some states (see above Risk Factors - Business  Risks),
enforcement  has not been  widespread and generally  there has been a continuing
trend of increasing spam traffic.  The growth and development of the spam market
may prompt calls for more stringent Internet user protection laws that may limit
the ability of companies  promoting or  delivering  spam online.  Moreover,  the
applicability  to  the  Internet  of  existing  laws  in  various  jurisdictions
governing issues such as property  ownership,  sales and other taxes,  libel and
personal  privacy is  uncertain  and may take years to resolve.  The adoption of
additional  laws  or  regulations,  or  the  application  of  existing  laws  or
regulations to the Internet, may impair the growth of the Internet or commercial
online services. All or some of the above laws could decrease the demand for our
anti-spam  solutions and increase our cost of doing business,  or otherwise harm
our business and operating results.


Risks Relating to Operations in Israel

We have  important  facilities  and  resources  located  in  Israel,  which  has
historically  experienced severe economic instability and military and political
unrest.

We are  incorporated  under  the laws of the  State  of  Israel.  Our  principal
research  and  development  facilities  are  located  in  Israel.  Although  the
substantial majority of our past sales were made to customers outside Israel, we
are  nonetheless  directly  influenced by the  political,  economic and military
conditions  affecting  Israel.  Any major  hostilities  involving Israel, or the
interruption  or  curtailment  of trade between  Israel and its present  trading
partners, could significantly harm our business, operating results and financial
condition.

Israel's economy has been subject to numerous destabilizing factors, including a
period of rampant  inflation in the early to  mid-1980's,  low foreign  exchange
reserves,  fluctuations in world commodity prices,  military conflicts and civil
unrest.  In addition,  Israel and some companies doing business with Israel have
been the  subject  of an  economic  boycott  by Arab  countries  since  Israel's


                                       10

establishment. These restrictive laws and policies may have an adverse impact on
our operating results, financial condition or expansion of our business.

Since the establishment of the State of Israel in 1948, a state of hostility has
existed between Israel and most of the Arab countries in the region. Peace talks
between Israel and the Palestinian  Authority began in the early 1990s, but they
broke  down in  mid-2000.  Attacks  on Israel  by  Palestinian  terrorists,  and
military responses by Israel, have accelerated  considerably since late 2000. We
cannot  predict  whether or when a peace  process  will  resume,  whether a full
resolution of these problems will be achieved, the nature of any such resolution
or any  consequences  that any of these factors may have on us. Any future armed
conflicts or political  instability  in the region could  negatively  affect our
business or harm our results of operations.

Our results of operations  may be negatively  affected by the  obligation of key
personnel to perform military service.

Certain of our officers and employees are currently  obligated to perform annual
reserve  duty in the Israel  Defense  Forces and are subject to being called for
active military duty at any time.  Although  Commtouch has operated  effectively
under these  requirements  since its inception,  we cannot predict the effect of
these obligations on Commtouch in the future.  Our operations could be disrupted
by the absence,  for a significant period, of one or more of our officers or key
employees due to military service.

Because a substantial  portion of our revenues  historically have been generated
in U.S.  dollars and a portion of our expenses have been incurred in New Israeli
Shekels,  our results of operations  may be adversely  affected by inflation and
currency fluctuations.

We have  generated a  substantial  portion of our  revenues in U.S.  dollars and
incurred a portion of our expenses,  principally  salaries and related personnel
expenses in Israel,  in New Israeli Shekels,  commonly  referred to as NIS. As a
result,  we have been  exposed to the risk that the rate of  inflation in Israel
will exceed the rate of devaluation of the NIS in relation to the dollar or that
the timing of any  devaluation may lag behind  inflation in Israel.  In 2002 and
for a number of years prior to 1999,  the rate of devaluation of the NIS against
the dollar  exceeded the rate of inflation.  This trend was reversed in 2003. We
cannot predict the trend for future years.  If the dollar cost of our operations
in Israel increases, our dollar-measured results of operations will be adversely
affected.  Our operations  also could be adversely  affected if we are unable to
guard against  currency  fluctuations in the future.  Accordingly,  we may enter
into currency  hedging  transactions to decrease the risk of financial  exposure
from  fluctuations  in the exchange  rate of the dollar  against the NIS.  These
measures,  however,  may not adequately protect us from material adverse effects
due to the impact of inflation in Israel.

The government  programs and benefits which we currently  receive  require us to
meet several conditions and may be terminated or reduced in the future.

Prior to 1998, we received  grants from the  Government  of Israel,  through the
Office of the Chief Scientist (OCS), for the financing of a significant  portion
of our research and  development  expenditures  in Israel.  In 2001 and 2002, we
applied  for  additional  grants and we may apply for  additional  grants in the
future. In 1999 and 2000, we did not receive any grants from the OCS. In 2001 we
received $0.6 million and in 2002 we received  $0.2 million.  While we submitted
an application for an additional grant in 2003, we decided not to draw any funds
thereunder  during 2003. The OCS budget has been subject to reductions which may
affect the availability of funds for this prospective  grant and other grants in
the future.  Therefore,  we cannot be certain  that we will  continue to receive
grants at the same rate,  or at all.  In  addition,  the terms of any future OCS
grants may be less favorable than our past grants.

In connection  with research and  development  grants  received from the OCS, we
must pay royalties to the OCS on the revenue  derived from the sale of products,
technologies  and  services  developed  with grants from the OCS. We account for
these royalties by recording an accrual in our financial statements.  Because we
determined  that no  revenue  is  expected  from some of these  projects,  as of
December 31, 2001 we decided to write down the related  $0.4 million  accrual we
recorded  in past  years.  The OCS  subsequently  confirmed  the status of these
projects as being non-royalty-bearing.  The OCS would be entitled to revisit the
status of these projects in the future if the Company were to commence utilizing
technology developed under these projects.

The terms of the OCS  grants and the law  pursuant  to which the grants are made
restrict our ability to manufacture products or transfer technologies  developed
using OCS grants outside of Israel.  This  restriction  may limit our ability to
enter into agreements for those products or technologies,  without OCS approval.
We cannot be certain  that the  approvals  of the OCS will be  obtained on terms
that are acceptable to us, or at all. In connection with our grant applications,
we have made  representations and covenants to the OCS. The funding from the OCS
is subject to the accuracy of these  representations  and  covenants  and to our
compliance with the conditions and  restrictions  imposed by the OCS. If we fail
to comply with any of these conditions or restrictions,  we could be required to
repay any grants previously  received,  together with linkage  adjustment to the
Israeli  consumer  price index and  interest,  and would likely be ineligible to
receive OCS grants in the future.

Grants received from the OCS through 2002 that the Company  potentially  will be
obligated to repay totaled approximately $800,000.

                                       11

The tax benefits we are currently  entitled to from the Government of Israel may
be reduced or terminated in the future.

Pursuant to the Law for the Encouragement of Capital Investments, the Government
of Israel through the Investment Center has granted "approved enterprise" status
to a portion  of our  capital  investment  programs.  The  portion of our income
derived  from our  approved  enterprise  program  will be exempt  from tax for a
limited  period  of two  years  commencing  in the  first  year in which we have
taxable income, and will be subject to a reduced tax for an additional period of
five to eight years  dependent  on the  percentage  of holdings of our shares by
foreign  shareholders.  The  benefits  available to an approved  enterprise  are
conditioned upon the fulfillment of specified  conditions,  including a required
amount of investments in fixed assets and a portion of these  investments  being
made  with  net  proceeds  of  equity  capital  raised  by us as  stipulated  in
applicable  law and in the  specific  certificates  of  approval.  If we fail to
comply  with these  conditions,  in whole or in part,  we may be required to pay
additional taxes (together with linkage adjustment to the Israeli consumer price
index and interest) for the period in which we benefited  from the tax exemption
or reduced tax rates and would likely be denied these benefits in the future. In
addition,  the law and  regulations  prescribing  the  benefits  provide  for an
expiration  date for the grant of new  benefits.  The  expiration  date has been
extended  several times in the past. The expiration  date currently in effect is
June 30, 2004 (which may be extended by ministerial  decision until December 31,
2004), and no new benefits will be granted after that date unless the expiration
date is extended. We cannot assure you that new benefits will be available after
June 30, 2004 or that  benefits will be continued in the future at their current
levels or at all.

Israeli  courts might not enforce  judgments  rendered  outside of Israel and it
might therefore be difficult for an investor to recover any judgment against any
of our officers or directors resident in Israel.

We  are  organized  under  the  laws  of  Israel,  and we  maintain  significant
operations in Israel. Certain of our officers and directors named in this report
reside outside of the United States. Therefore, you might not be able to enforce
any judgment  obtained in the U.S. against us or any of such persons.  You might
not be able to bring  civil  actions  under U.S.  securities  laws if you file a
lawsuit in Israel.  However,  we have been advised by our Israeli  counsel that,
subject to several limitations, Israeli courts may enforce a final judgment of a
U.S. court for liquidated amounts in civil matters after a hearing in Israel. We
have  appointed  Commtouch  Inc., our U.S.  subsidiary,  as our agent to receive
service of process in any action  against us arising from this  report.  We have
not given our consent for our agent to accept  service of process in  connection
with any other claim and it may therefore be difficult for an investor to effect
service of process  against us or any of our non-U.S.  officers,  directors  and
experts  relating to any other claims.  If a foreign  judgment is enforced by an
Israeli court, it may be payable in Israeli currency.

Provisions of Israeli law may delay, prevent or make difficult an acquisition of
Commtouch,  which could  prevent a change of control and  therefore  depress the
price of our shares.

Israeli corporate law regulates  mergers,  votes required to approve mergers and
acquisitions  of shares through tender offers,  requires  special  approvals for
transactions involving significant shareholders and regulates other matters that
may be  relevant  to  these  types  of  transactions.  Furthermore,  Israel  tax
considerations may make potential  transactions  unappealing to us or to some of
our shareholders and tax reform in Israel can reduce potential tax benefits, and
limit our potential profitability.

You should rely only on the information  contained in this  prospectus.  We have
not authorized any other person to provide you with different information.  This
prospectus  is not an offer to sell,  nor is it seeking  an offer to buy,  these
securities in any  jurisdiction  where the offer or sale is not  permitted.  The
information  in this  prospectus  is complete and accurate as of the date on the
front cover, but the information may have changed since that date.


                                       12

                         CAPITALIZATION AND INDEBTEDNESS

The following table sets forth the capitalization and indebtedness of Commtouch
as of March 31, 2004, actual and as adjusted for the May 18, 2004 financing:




                                                                                                 (UNAUDITED)         (UNAUDITED)
                                                                                                    Actual           As adjusted
                                                                                                (IN THOUSANDS)     (IN THOUSANDS)
                                                                                                --------------     --------------
                                                                                                               
Long-term liabilities                                                                              $   3,387         $   3,398
                                                                                                   ---------         ---------
Shareholders' equity:
     Ordinary shares, NIS 0.05 par value; 150,000,000 (adjusted from 75,000,000)
     shares authorized, with 37,319,562 and 42,451,145 actual and as adjusted shares
     issued and outstanding, respectively                                                                459               516
Additional paid-in capital                                                                           160,626           163,627
Accumulated other comprehensive income                                                                    44                44
Notes receivable from shareholders                                                                      (102)             (102)
Accumulated deficit                                                                                 (160,117)         (159,545)
                                                                                                   ---------         ---------
Total shareholders' equity                                                                         $     910         $   4,540
                                                                                                   =========         =========
Total capitalization and indebtedness                                                              $   4,297         $   7,938
                                                                                                   =========         =========


The as adjusted numbers reflect a private placement of 5,131,583 ordinary shares
of the Company for an aggregate  amount of $3.9 million and the reduction of the
conversion  and  exercise  prices of the November  Notes and  November  Warrants
issued  to the  investors  within  the  frameworks  of the  November  Securities
Purchase Agreement previously set at $1.153, to $0.83.



                                       13

                              THE OFFER AND LISTING

The Offering


                                                           
Ordinary shares offered by selling securityholders..........  27,526,358 shares, NIS 0.05 par value per share
Price.......................................................  As determined by each selling securityholder
Ordinary shares outstanding after the offering..............  64,889,382 shares (assuming  ordinary shares outstanding prior to the
                                                              offering on May 31, 2004 of 37,363,024)
Use of proceeds.............................................  Commtouch will not receive any of the proceeds from the sale of the
                                                              shares by the selling securityholders in this offering.
NASDAQ SmallCap Market Symbol ..............................  CTCHC


Shares will be offered on a registered basis and not as bearer shares.


Market Information

The Company's  Ordinary  Shares traded publicly on The Nasdaq Stock Market under
the symbol "CTCH" from July 13, 1999 (up to June 7, 2002 on the National Market,
and  subsequently  on the SmallCap  Market) through June 29, 2004, and under the
symbol "CTCHC" as from June 30, 2004.

The  following  table  lists  the  high and low  closing  sales  prices  for the
Company's Ordinary Shares, for the periods indicated,  as reported by The Nasdaq
Stock Market:

                                                             High          Low
                                                           --------     --------
1999 (beginning July 13, 1999): ................            $49.12      $11.0625

2000: ..........................................            $66.50      $ 7.44

2001: ..........................................            $ 3.81      $ 0.20


2002: ..........................................            $ 0.42      $ 0.06

2003: ..........................................            $ 1.47      $ 0.10

2002:
First Quarter ..................................            $ 0.42      $ 0.23
Second Quarter .................................            $ 0.25      $ 0.11
Third Quarter ..................................            $ 0.15      $ 0.08
Fourth Quarter .................................            $ 0.22      $ 0.06

2003:
First Quarter ..................................            $ 0.16      $ 0.10
Second Quarter .................................            $ 0.69      $ 0.16
Third Quarter ..................................            $ 0.96      $ 0.55
Fourth Quarter .................................            $ 1.47      $ 0.79


2004:
First Quarter ..................................            $ 1.24      $ 0.83

Most Recent Six Months:
December 2003 ..................................            $ 1.15      $ 0.79
January 2004 ...................................              1.24        0.84
February 2004 ..................................              1.15        0.91
March 2004 .....................................              1.06        0.83
April 2004 .....................................              1.09        0.85
May 2004 .......................................              0.92        0.57


                                       14

                    REASONS FOR THE OFFER AND USE OF PROCEEDS

We will not  receive  any  proceeds  from the sale of the shares by the  selling
securityholders in this offering. However, we will receive the exercise price if
the selling  securityholders  exercise their warrants and/or additional purchase
rights.  We cannot be  certain  as to when and if all of these  warrants  and/or
additional  purchase  rights  will  be  exercised  and as to the  amount  of the
proceeds we will actually receive from exercises.  All proceeds from the sale of
the shares will be for the account of the selling securityholders,  as described
below. See "Selling Securityholders" and "Plan of Distribution."


                             SELLING SECURITYHOLDERS

The ordinary  shares being  offered by the selling  securityholders  were issued
pursuant to (i) a Securities Purchase Agreement,  dated as of May 18, 2004, (ii)
are issuable upon exercise of additional  investment rights and warrants,  which
were also issued pursuant to the Securities  Purchase  Agreement,  and (iii) are
issuable upon conversion of the convertible  notes and upon exercise of warrants
under the  Securities  Purchase  Agreement of November 26, 2003.  For additional
information   regarding  the  convertible  notes  and  warrants,   see  "Private
Placements of Ordinary Shares,  Additional Investment Shares,  Convertible Notes
and Warrants"  above.  We are registering the ordinary shares in order to permit
the  selling  securityholders  to offer the shares for resale from time to time.
Except  for the  ownership  of certain  convertible  notes and  warrants  issued
pursuant to the transaction of November 2003 and the Ordinary Shares, Additional
Investment  Rights and  Warrants  issued  pursuant  to the  Securities  Purchase
Agreement of May 18, 2003, and apart from Israel Seed IV, L.P.  (which  invested
in  the  Company  in a  private  placement  in  late  July  2003),  the  selling
securityholders  have not had any material  relationship with us within the past
three years.

The following table presents information provided by the selling securityholders
with respect to beneficial  ownership of our ordinary shares as of May 31, 2004,
and as adjusted to reflect the sale of the shares offered by this prospectus, by
the selling  securityholders  and assumes that all shares being  offered by this
prospectus  are  ultimately  sold in the  offering.  The second column lists the
number of ordinary shares beneficially owned by each selling shareholder,  based
on  its  ownership  of  the  convertible  notes,  ordinary  shares,   additional
investment rights and the warrants,  as of June 29, 2004, assuming conversion of
all  convertible  notes and  exercise of the  additional  investment  rights and
warrants held by the selling securityholders on that date, without regard to any
limitations on conversions or exercise.

The fourth column lists the ordinary  shares being offered by this prospectus by
the selling securityholders.

The table includes all shares  issuable within 60 days of June 29, 2004 upon the
exercise  of  warrants  and other  rights  beneficially  owned by the  indicated
shareholders on that date.  Beneficial ownership as set forth below includes the
power to direct the voting or the  disposition  of the  securities or to receive
the economic  benefit of  ownership of the  securities.  To our  knowledge,  the
persons named in the table have sole voting,  sole  investment  control and sole
right to receive the economic  benefit with  respect to all shares  listed.  The
applicable  percentage of ownership for each  shareholder is based on 37,363,024
ordinary  shares  outstanding as of May 31, 2004 and 64,889,382  ordinary shares
outstanding immediately following the completion of this offering, together with
applicable  warrants for that shareholder that are exercisable within 60 days of
May 31, 2004.

In accordance with the terms of registration  rights agreements with the selling
securityholders, this prospectus generally covers the resale of at least the sum
of (i) the number of ordinary  shares issued to the selling  securityholders  in
the  private  placement  of May 18,  2004,  (ii) 130% of the number of  ordinary
shares issuable upon exercise of the warrants under such transaction,  (iii) the
number of ordinary  shares  issuable upon exercise of the additional  investment
rights under such  transaction  and (iv) 130% of that number of ordinary  shares
equal  to  the  number  of  ordinary  shares  issuable  upon  conversion  of the
convertible  notes and upon exercise of the related  warrants under the November
26, 2003  transaction,  determined as if the outstanding  additional  investment
rights,  warrants and convertible notes were exercised in full, in each case, as
of the trading day immediately  preceding the date this  registration  statement
was initially  filed with the SEC.  Because the exercise price of the additional
investment rights and warrants and conversion price of the convertible notes may
be  adjusted,  the number of shares that will  actually be issued may be more or
less than the  number of shares  being  offered  by this  prospectus.  The fifth
column   assumes  the  sale  of  all  of  the  shares  offered  by  the  selling
securityholders pursuant to this prospectus.

Under the terms of the additional  investment  rights,  warrants and convertible
notes, a selling  shareholder may not exercise the additional  investment rights
or warrants or convert the  convertible  notes,  to the extent such  exercise or
conversion would cause such selling  shareholder,  together with its affiliates,
to beneficially  own a number of ordinary shares which would exceed 4.99% of our
then outstanding ordinary shares following such exercise, excluding for purposes
of  such   determination   ordinary  shares  issuable  upon  conversion  of  the
convertible  notes  which  have not been  converted  and  upon  exercise  of the

                                       15


additional  investment  rights and warrants which have not been  exercised.  The
number of shares in the second  column does not  reflect  this  limitation.  The
selling  securityholders  may sell  all,  some or none of their  shares  in this
offering. See "Plan of Distribution."




                                                                                    Shares
                                                Shares Beneficially                  to be                Shares Beneficially
                                              Owned Prior to Offering               Offered              Owned After Offering
                                           -----------------------------     -----------------------   ------------------------
                                                              Percent of                  Percent of                 Percent of
                                                             Outstanding                 Outstanding                Outstanding
Name of Beneficial Owner                    Number             Shares         Number       Shares       Number         Shares
-------------------------------            --------            -------       --------      ------      --------        ------
                                                                                                       
Israel Seed IV, L.P.(1)                   10,958,298            22.68        8,278,513      18.14      2,679,785         4.07
c/o Maples and Calder, P.O. Box
309 G.T., Ugland House, South
Church Street
Grand Cayman, Cayman Island

Smithfield Fiduciary LLC(2)                5,076,760            11.96        5,076,760      11.96              0         0
c/o Highbridge Capital
Management, LLC
9 West 57th Street, 27th Floor
New York, New York  10019

Omicron Master Trust (3)                   4,587,724            10.94        4,587,724      10.94              0         0
c/o Omicron Capital
810 Seventh Avenue
39th Floor
New York, New York 10019

Cranshire Capital L.P. (4)                 4,995,636            11.79        4,995,636      11.79              0         0
c/o Downsview Capital, Inc.
The General Partner
666 Dundee Road, Suite 1901
Northbrook, IL  60062

Vertical Ventures, LLC (5)                 3,719,304             9.05        3,719,304       9.05              0         0
900 Third Avenue, 26th Floor
New York, New York  10022
Iroquois Capital LP (6)
c/oVertical Ventures, LLC                    868,421             2.27          868,421       2.27              0         0
900 Third Avenue, 26th Floor
New York, New York  10022

TOTALS                                    30,206,143            44.70       27,526,358      42.42      2,679,785         4.07


         (1) Israel Seed IV L.P.  ("ISLP  IV") is  organized  as a "blind  pool"
partnership in which the limited  partners have no discretion over investment or
sale decisions,  are not able to withdraw from ISLP IV except under  exceptional
circumstances, and generally participate ratably in each investment made by ISLP
IV. The sole General  Partner of ISLP IV is Israel  Venture  Partners  2000 Ltd.
("IVP")  which has sole  investment  control  with  respect to ISLP IV. The sole
principals of the investment advisors to IVP are Jonathan Medved, Neil Cohen and
Michael  Eisenberg and, as such, they may be deemed to share voting control over
the shares of the Company held by the ISLP IV. No other persons have  investment

                                       16


control  over IVP or ISLP IV. IVP and  Jonathan  Medved,  Neil Cohen and Michael
Eisenberg disclaim beneficial  ownership of any shares held by ISLP IV except to
the extent of their respective pecuniary interests.

         (2) Highbridge Capital Management,  LLC ("Highbridge"),  is the trading
manager of Smithfield  Fiduciary LLC  ("Smithfield") and consequently has voting
control and investment  discretion  over the ordinary shares held by Smithfield.
Glenn Dubin and Henry Swieca control Highbridge.  Each of Highbridge and Messrs.
Dubin  and  Swieca  disclaims   beneficial  ownership  of  the  shares  held  by
Smithfield.

         (3) Omicron  Capital,  L.P., a Delaware limited  partnership  ("Omicron
Capital"),  serves as investment manager to Omicron Master Trust, a trust formed
under  the laws of  Bermuda  ("Omicron"),  Omicron  Capital,  Inc.,  a  Delaware
corporation  ("OCI"),   serves  as  general  partner  of  Omicron  Capital,  and
Winchester Global Trust Company Limited  ("Winchester") serves as the trustee of
Omicron. By reason of such relationships,  Omicron Capital and OCI may be deemed
to share dispositive power over the shares of our common stock owned by Omicron,
and  Winchester  may be deemed to share  voting and  dispositive  power over the
shares of our common stock owned by Omicron. Omicron Capital, OCI and Winchester
disclaim  beneficial  ownership  of such  shares of our  common  stock.  Omicron
Capital  has  delegated  authority  from the board of  directors  of  Winchester
regarding  the  portfolio  management  decisions  with  respect to the shares of
common stock owned by Omicron and, as of April 21, 2003,  Mr.  Olivier H. Morali
and Mr. Bruce T. Bernstein,  officers of OCI, have delegated  authority from the
board of  directors  of OCI  regarding  the  portfolio  management  decisions of
Omicron Capital with respect to the shares of common stock owned by Omicron.  By
reason of such delegated authority,  Messrs.  Morali and Bernstein may be deemed
to share dispositive power over the shares of our common stock owned by Omicron.
Messrs. Morali and Bernstein disclaim beneficial ownership of such shares of our
common  stock and neither of such  persons has any legal right to maintain  such
delegated  authority.  No other person has sole or shared voting or  dispositive
power with respect to the shares of our common  stock being  offered by Omicron,
as those terms are used for purposes  under  Regulation  13D-G of the Securities
Exchange Act of 1934, as amended. Omicron and Winchester are not "affiliates" of
one another, as that term is used for purposes of the Securities Exchange Act of
1934, as amended,  or of any other person named in this  prospectus as a selling
stockholder.  No person or "group" (as that term is used in Section 13(d) of the
Securities  Exchange Act of 1934,  as amended,  or the SEC's  Regulation  13D-G)
controls Omicron and Winchester.

         (4) Mitchell P. Kopin is the president of Downsview Capital,  Inc., the
general  partner of Cranshire  Capital,  L.P.,  and has sole voting  control and
investment discretion over securities held by Cranshire Capital, L.P.

         (5) Joshua Silverman,  a partner of Vertical  Ventures,  LLC has voting
control and investment  discretion over  securities  held by Vertical  Ventures,
LLC. Mr. Silverman disclaims beneficial ownership of the shares held by Vertical
Ventures, LLC.

         (6) Joshua Silverman has voting control and investment  discretion over
securities held by Iroquois  Capital,  LP. Mr.  Silverman  disclaims  beneficial
ownership of the shares held over by Iroquois Capital, LP.


                                       17

                         SHARES ELIGIBLE FOR FUTURE SALE


Freely Tradable Shares--Registered Shares

Future sales of substantial amounts of our ordinary shares in the public market,
or the possibility of these sales occurring,  could adversely affect  prevailing
market  prices for our ordinary  shares or our future  ability to raise  capital
through an offering of equity securities.

As of May 31, 2004 we had 37,363,024 ordinary shares outstanding.  The 3,450,000
ordinary  shares sold in our initial public offering in July 1999; the 1,344,086
ordinary shares and the 1,136,000 shares  underlying a warrant held by InfoSpace
and Vulcan  Ventures  registered in 2000 in a secondary  offering along with the
707,965 ordinary shares we issued to Microsoft  Corporation;  the 315,789 shares
we issued to Rideau Ltd., a private  investor,  on June 30, 2001;  the 1,406,612
shares  registered in August 2001 in a secondary  offering for  shareholders  of
Wingra, a former  subsidiary of the Company;  the 7,095,886 shares registered in
May 2002 for  certain  selling  securityholders  under a private  placement,  as
identified in the Form F-3 relating thereto;  the 8,793,564 shares registered on
November 3, 2003 for  certain  selling  securityholders  under the two July 2003
private  placements,  as  identified  in the  Form  F-3  relating  thereto;  the
11,345,358 and 4,162,479  shares  registered in January 2004 under the two Forms
F-3  relating  to the  convertible  loan  transactions  of January  29, 2003 and
November 26, 2003,  respectively,  are all freely  tradable in the public market
without  restriction  under the  Securities  Act,  unless the shares are held by
"affiliates"  of the  Company,  as that  term is  defined  in Rule 144 under the
Securities  Act. In  addition,  the  23,363,879  shares  under this  prospectus,
relating to shares issued or issuable under the Securities  Purchase  Agreements
of May 18, 2004 and  November  26, 2003,  will also be freely  tradable  without
restriction, unless otherwise indicated in the related prospectus supplement.

We have 3,684,211 shares remaining under a shelf Registration  Statement on file
with the SEC. All of the shares thereunder will be freely tradeable when, as and
if issued.


Freely Tradable Shares--Shares Under Employee Benefit Plans

On  January  20,  2000,  we filed a Form S-8  Registration  Statement  under the
Securities Act to register 5,250,000 ordinary shares issuable in connection with
option  exercises  and shares  reserved for  issuance  under all stock plans and
agreements as well as 150,000 ordinary shares under the Company's Employee Stock
Purchase  Plan which the Company may issue to  employees  from time to time.  On
July 20, 2001,  the Company  filed  another Form S-8  Registration  Statement to
register:  an  additional  250,000  of  our  ordinary  shares  approved  by  our
shareholders on August 10, 2000 for issuance under the Company's  director stock
option plan;  an  additional  79,156 shares  issuable  under our Employee  Stock
Purchase Plan; and 162,257 shares  underlying  options  issuable to employees of
Wingra  pursuant  to the terms of the  Wingra  merger  agreement  and the Wingra
Technologies,  LLC 1998 Unit Option Plan.  The Employee  Stock Purchase Plan was
since terminated in late 2001.

The Company issues  employee and director stock options from time to time.  Such
options are subject to vesting  periods  after which the shares may be resold by
the holders,  subject to Rule 144 limitations if the holder is an affiliate.  Of
13,935,644  options  issued in the past,  as of May 31, 2004 there are 6,130,077
options  outstanding,  with 4,825,881 option shares being vested and unexercised
and 1,976,456 options having been exercised.  Of these options,  799,501 options
priced at $0.0125 remain  outstanding and exercisable,  with 722,309 being fully
vested.


Warrants and Conversion Rights

Please  see Form 20-F for 2003  filed by the  Company  for  detail  relating  to
outstanding warrants and conversion rights granted in the past by the Company.


Restricted Shares--Rule 144

The remaining  ordinary  shares  outstanding,  if any,  upon  completion of this
offering will be "restricted securities" as that term is defined under Rule 144.
We issued and sold  these  restricted  securities  in  private  transactions  in
reliance on exemptions from  registration  under the Securities Act.  Restricted
securities  may be sold in the public  market only if they are  registered or if
they qualify for an exemption from registration under Rule 144 or Rule 701 under
the Securities  Act, as summarized  below. We believe that the majority of these
shares may fulfill the requirements of Rule 144(k).

Most of the  restricted  shares are subject to certain  volume and other  resale
restrictions  pursuant  to Rule  144  because  the  holders  are  affiliates  of
Commtouch.  In general,  under Rule 144, an affiliate of Commtouch,  or a person
(including a group of related persons whose shares must be aggregated  under the
Rule) who has beneficially  owned restricted  shares for at least one year, will

                                       18

be entitled to sell in any  three-month  period a number of shares that does not
exceed the greater of

     o    1% of the then  outstanding  ordinary  shares  (approximately  648,894
          shares immediately following completion of the offering), or

     o    the average  weekly  trading  volume  during the four  calendar  weeks
          preceding  the date on  which  notice  of the  sale is filed  with the
          Commission.

Sales  pursuant  to Rule 144 are  subject to certain  requirements  relating  to
manner of sale,  notice and  availability  of current public  information  about
Commtouch. A person who was not an affiliate of Commtouch for 90 days before the
sale and who has  beneficially  owned the shares for at least two years may sell
under Rule 144(k) without regard to the above limitations.


Additional Restrictions

In  addition  to the  restrictions  imposed  by  the  securities  laws,  670,180
restricted  shares were issued to certain  Commtouch  employees under agreements
which give Commtouch Inc. a repurchase  option on any unvested  shares.  Most of
these shares have either  fully  vested or have been retired by the Company.  In
any case, due to restrictions  under Israeli law, the repurchase of these shares
is unlikely.



                              PLAN OF DISTRIBUTION

     We are registering the ordinary shares issued and issuable upon exercise of
the additional  investment rights and warrants and conversion of the convertible
notes,  in order to permit the resale of these ordinary shares by the holders of
the ordinary shares,  additional  investment  rights,  convertible notes and the
warrants  from  time to time  after  the  date of this  prospectus.  We will not
receive any of the proceeds from the sale by the selling  securityholders of the
ordinary shares.  We will bear all fees and expenses  incident to our obligation
to register the ordinary shares.

     The  selling  securityholders  may sell all or a  portion  of the  ordinary
shares  beneficially owned by them and offered hereby from time to time directly
or through one or more  underwriters,  broker-dealers or agents. If the ordinary
shares  are  sold   through   underwriters   or   broker-dealers,   the  selling
securityholders will be responsible for underwriting discounts or commissions or
agent's commissions. The ordinary shares may be sold in one or more transactions
at fixed prices, at prevailing market prices at the time of the sale, at varying
prices determined at the time of sale, or at negotiated prices.  These sales may
be effected in transactions, which may involve crosses or block transactions,

     o    on any national  securities exchange or quotation service on which the
          securities may be listed or quoted at the time of sale;

     o    in the over-the-counter market;

     o    in transactions otherwise than on these exchanges or systems or in the
          over-the-counter market;

     o    through the writing of options,  whether such options are listed on an
          options exchange or otherwise;

     o    ordinary   brokerage   transactions  and  transactions  in  which  the
          broker-dealer solicits purchasers;

     o    block  trades  in which the  broker-dealer  will  attempt  to sell the
          shares as agent but may  position and resell a portion of the block as
          principal to facilitate the transaction;

     o    purchases  by  a   broker-dealer   as  principal  and  resale  by  the
          broker-dealer for its account;

     o    an  exchange   distribution  in  accordance  with  the  rules  of  the
          applicable exchange;

     o    privately negotiated transactions;

     o    short sales;

                                       19


     o    broker-dealers  may agree with the selling  securityholders  to sell a
          specified number of such shares at a stipulated price per share;

     o    a combination of any such methods of sale; and

     o    any other method permitted pursuant to applicable law.

     The selling  securityholders  may also sell shares under Rule 144 under the
Securities Act, if available, rather than under this prospectus.


     If the selling securityholders effect such transactions by selling ordinary
shares to or through underwriters,  broker-dealers or agents, such underwriters,
broker-dealers  or agents  may  receive  commissions  in the form of  discounts,
concessions or commissions from the selling  securityholders or commissions from
purchasers of the ordinary shares for whom they may act as agent or to whom they
may  sell as  principal  (which  discounts,  concessions  or  commissions  as to
particular  underwriters,  broker-dealers  or  agents  may be in excess of those
customary in the types of  transactions  involved).  In connection with sales of
the ordinary  shares or otherwise,  the selling  securityholders  may enter into
hedging  transactions  with  broker-dealers,  which may in turn  engage in short
sales of the ordinary  shares in the course of hedging in positions they assume.
The selling  securityholders  may also sell  ordinary  shares  short and deliver
ordinary  shares covered by this  prospectus to close out short  positions.  The
selling   securityholders   may  also   loan  or  pledge   ordinary   shares  to
broker-dealers that in turn may sell such shares.

     The selling securityholders may pledge or grant a security interest in some
or all of the  additional  investment  rights,  convertible  notes,  warrants or
ordinary  shares owned by them and, if they default in the  performance of their
secured  obligations,  the  pledgees  or secured  parties may offer and sell the
ordinary  shares from time to time pursuant to this  prospectus or any amendment
to this  prospectus  under Rule 424(b)(3) or other  applicable  provision of the
Securities Act of 1933, as amended,  amending, if necessary, the list of selling
securityholders  to include  the  pledgee,  transferee  or other  successors  in
interest  as  selling   securityholders  under  this  prospectus.   The  selling
securityholders  also may  transfer  and  donate  the  ordinary  shares in other
circumstances  in  which  case  the  transferees,   donees,  pledgees  or  other
successors  in interest  will be the selling  beneficial  owners for purposes of
this prospectus.

     The selling  securityholders  and any  broker-dealer  participating  in the
distribution  of the ordinary shares may be deemed to be  "underwriters"  within
the meaning of the Securities Act, and any commission  paid, or any discounts or
concessions  allowed to, any such broker-dealer may be deemed to be underwriting
commissions  or  discounts  under the  Securities  Act. At the time a particular
offering of the ordinary shares is made, a prospectus  supplement,  if required,
will be distributed which will set forth the aggregate amount of ordinary shares
being offered and the terms of the offering,  including the name or names of any
broker-dealers   or  agents,   any  discounts,   commissions   and  other  terms
constituting  compensation from the selling  securityholders  and any discounts,
commissions or concessions allowed or reallowed or paid to broker-dealers.

     Under the securities  laws of some states,  the ordinary shares may be sold
in such states  only  through  registered  or  licensed  brokers or dealers.  In
addition,  in some states the ordinary shares may not be sold unless such shares
have been  registered or qualified  for sale in such state or an exemption  from
registration or qualification is available and is complied with.

     There can be no assurance that any selling shareholder will sell any or all
of the ordinary shares registered pursuant to the shelf registration  statement,
of which this prospectus forms a part.

     The selling  securityholders  and any other  person  participating  in such
distribution will be subject to applicable provisions of the Securities Exchange
Act of 1934, as amended,  and the rules and regulations  thereunder,  including,
without limitation, Regulation M of the Exchange Act, which may limit the timing
of  purchases  and  sales  of  any  of  the  ordinary   shares  by  the  selling
securityholders  and any  other  participating  person.  Regulation  M may  also


                                       20


restrict the ability of any person engaged in the  distribution  of the ordinary
shares  to engage in  market-making  activities  with  respect  to the  ordinary
shares. All of the foregoing may affect the marketability of the ordinary shares
and the  ability of any person or entity to engage in  market-making  activities
with respect to the ordinary shares.

     We  will  pay all  expenses  of the  registration  of the  ordinary  shares
pursuant to the registration  rights  agreement,  as detailed below,  including,
without limitation,  Securities and Exchange Commission filing fees and expenses
of compliance with state securities or "blue sky" laws; provided,  however, that
a  selling   shareholder  will  pay  all  underwriting   discounts  and  selling
commissions,  if any.  We will  indemnify  the selling  securityholders  against
liabilities,  including some liabilities under the Securities Act, in accordance
with the registration rights agreements,  or the selling securityholders will be
entitled to contribution.  We may be indemnified by the selling  securityholders
against civil liabilities,  including liabilities under the Securities Act, that
may  arise  from  any  written  information  furnished  to  us  by  the  selling
shareholder  specifically  for use in this  prospectus,  in accordance  with the
related registration rights agreements, or we may be entitled to contribution.

     Once sold under the shelf registration  statement, of which this prospectus
forms a part,  the  ordinary  shares  will be  freely  tradable  in the hands of
persons other than our affiliates.


Expenses Associated with Registration

We are paying  substantially  all of the  expenses of  registering  the ordinary
shares under the Securities Act and of compliance with blue sky laws,  including
registration and filing fees, printing and duplication expenses,  administrative
expenses,  our legal and accounting fees and the legal fees of counsel on behalf
of the selling  securityholders.  We estimate these expenses to be approximately
$219,363, which include the following categories of expenses:

     SEC registration fee........................................   $1,747*
     Printing and engraving expenses.............................        0
     Legal fees and expenses ....................................   15,000
     Accounting fees and expenses................................    7,000
     Transfer agent and registrar fees and expenses..............  194,616
     Miscellaneous expenses......................................    1,000
                                                                  --------
     Total....................................................... $219,363
                                                                  ========

     *    This fee is being offset  against the filing fee  previously  paid for
          Registration   No.   333-31836,   which   was   withdrawn   prior   to
          effectiveness.

                                  LEGAL MATTERS

The  validity of the  ordinary  shares  offered  hereby is being passed upon for
Commtouch  by  Naschitz,  Brandes  & Co.,  Tel-Aviv,  Israel.  The  partners  of
Naschitz,  Brandes  & Co.  and  the  firm  itself,  beneficially  owns,  in  the
aggregate,  15,000 outstanding shares of the Company, including upon exercise of
options, warrants or other derivative securities.


                                     EXPERTS

The Consolidated  Financial  statements of Commtouch  Software Ltd. appearing in
Commtouch  Software  Ltd's Annual Report (Form 20-F) for the year ended December
31, 2003, have been audited by Kost, Forer, Gabbay & Kasierer of 3 Aminadav St.,
Tel-Aviv 61575, Israel, a member of Ernst & Young Global,  independent auditors,
as set  fourth in their  report  thereon  included  therein.  Such  consolidated
financial  statements are incorporated herein by reference in reliance upon such
report  given  on the  authority  of such  firm as  experts  in  accounting  and
auditing.


                       WHERE YOU CAN FIND MORE INFORMATION

We have filed a  Registration  Statement on Form F-3 with the SEC for the shares
we are offering by this prospectus.  This prospectus does not include all of the
information  contained in the  Registration  Statement.  You should refer to the
Registration Statement and its exhibits for additional information.  Whenever we
make reference in this  prospectus to any of our contracts,  agreements or other
documents,  the references are not necessarily  complete and you should refer to
the exhibits  attached to the  Registration  Statement  for copies of the actual
contract, agreement or other document.

                                       21


We are required to file annual and special  reports and other  information  with
the SEC. You can read our SEC filings,  including  the  Registration  Statement,
over the Internet at the SEC's web site at http://www.sec.gov. You may also read
and copy any document we file with the SEC at its public reference facilities at
450 Fifth Street,  NW,  Washington,  DC 20549. You may also obtain copies of the
documents at prescribed rates by writing to the Public Reference  Section of the
SEC at 450 Fifth Street, NW, Room 1024,  Washington,  DC 20549.  Please call the
SEC at  1-800-SEC-0330  for further  information  on the operation of the public
reference facilities.

We are subject to certain of the informational requirements of the Exchange Act.
As a "foreign  private  issuer," we are exempt from the rules under the Exchange
Act  prescribing  certain  disclosure  and  procedural  requirements  for  proxy
solicitations and our officers,  directors and principal shareholders are exempt
from the reporting and  "short-swing"  profit recovery  provisions  contained in
Section 16 of the Exchange  Act,  with respect to their  purchases  and sales of
ordinary shares.  In addition,  we are not required to file quarterly reports or
to file annual and current reports and financial  statements with the Securities
and Exchange  Commission as frequently  or as promptly as U.S.  companies  whose
securities are  registered  under the Exchange Act.  However,  we intend to file
with the  Securities and Exchange  Commission,  within 180 days after the end of
each fiscal year, an annual report on Form 20-F containing  financial statements
that  will be  examined  and  reported  on,  with  an  opinion  expressed  by an
independent accounting firm, as well as quarterly reports on Form 6-K containing
unaudited financial  information,  within 60 days after the end of each calendar
quarter.


                      INFORMATION INCORPORATED BY REFERENCE

The  SEC  allows  us  to  "incorporate  by  reference"   information  into  this
prospectus.  This means that we can  disclose  important  information  to you by
referring  you to  another  document  filed  by us  with  the  SEC.  Information
incorporated  by reference is deemed to be part of this  prospectus,  except for
any information superseded by this prospectus or by information we file with the
SEC in the future.

The following documents are incorporated by reference:

(a) Our Annual Report on Form 20-F for the fiscal year ended December 31, 2003;

(b)  The  description  of our  ordinary  shares  contained  in the  Registration
Statement  under the  Exchange Act on Form 8-A as filed with the  Commission  on
June 25, 1999, and any  subsequent  amendment or report filed for the purpose of
updating this description; and

(c) Our first quarter 2004 financial  results  included on Form 6-K filed by the
Company with the SEC on June 29, 2004.

In  addition,  all  subsequent  annual  reports  filed on Form 20-F prior to the
termination of this offering are incorporated by reference into this prospectus.
Also, we may  incorporate by reference our future reports on Form 6-K by stating
in  those  Forms  that  they are  being  incorporated  by  reference  into  this
prospectus.

We will provide without charge to any person (including any beneficial owner) to
whom this prospectus has been delivered, upon oral or written request, a copy of
any document incorporated by reference in this prospectus but not delivered with
the prospectus  (except for exhibits to those documents unless a document states
that one of its  exhibits  is  incorporated  into  the  document  itself).  Such
requests  should be directed to Devyani  Patel,  Vice  President,  Finance,  c/o
Commtouch Inc.,  1300  Crittenden  Lane,  Suite 103,  Mountain View,  California
94043.   Our  corporate   website  address  is   http://www.commtouch.com.   The
information on our website is not intended to be a part of this prospectus.


                       ENFORCEABILITY OF CIVIL LIABILITIES

We are  incorporated  in  Israel,  and  many of our  directors  and  many of the
executive officers and the Israeli experts named herein are not residents of the
United States and  substantially  all of their assets and our assets are located
outside  the  United  States.  Service  of process  upon our  non-U.S.  resident
directors  and  executive  officers  or the  Israeli  experts  named  herein and
enforcement  of  judgments  obtained  in the United  States  against us, and our
directors and executive  officers,  or the Israeli experts named herein,  may be
difficult to obtain within the United  States.  Commtouch Inc. is the U.S. agent
authorized to receive service of process in any action against us arising out of
this offering or any related  purchase or sale of securities.  We have not given
consent for this agent to accept service of process in connection with any other
claim.

We have been informed by our legal counsel in Israel,  Naschitz,  Brandes & Co.,
that  there is doubt as to the  enforceability  of civil  liabilities  under the
Securities  Act or the Exchange Act in original  actions  instituted  in Israel.
However,  subject to certain time  limitations,  an Israeli  court may declare a
foreign civil judgment enforceable if it finds that:

     *    the judgment was rendered by a court which was,  according to the laws
          of the state of the court, competent to render the judgment,

     *    the judgment is no longer appealable,

                                       22

     *    the obligation imposed by the judgment is enforceable according to the
          rules  relating to the  enforceability  of judgments in Israel and the
          substance of the judgment is not contrary to public policy, and

     *    the judgment is executory in the state in which it was given.

Even if the above conditions are satisfied,  an Israeli court will not enforce a
foreign  judgment  if it was given in a state  whose laws do not provide for the
enforcement of judgments of Israeli courts (subject to exceptional  cases) or if
its  enforcement is likely to prejudice the sovereignty or security of the State
of Israel. An Israeli court also will not declare a foreign judgment enforceable
if (i) the judgment was obtained by fraud, (ii) there was no due process,  (iii)
the judgment was rendered by a court not competent to render it according to the
laws of private  international  law in Israel,  (iv) the judgment is at variance
with another judgment that was given in the same matter between the same parties
and which is still  valid,  or (v) at the time the  action  was  brought  in the
foreign court a suit in the same matter and between the same parties was pending
before a court or tribunal in Israel.  Judgments rendered or enforced by Israeli
courts will generally be payable in Israeli currency.  Judgment debtors bear the
risk associated with converting  their awards into foreign  currency,  including
the risk of unfavorable exchange rates.



                                       23










                           27,526,358 Ordinary Shares


                             COMMTOUCH SOFTWARE LTD.




                             ----------------------


                                   PROSPECTUS


                             ----------------------




                                 _________, 2004




                                     PART II


                     INFORMATION NOT REQUIRED IN PROSPECTUS


Item 8. Indemnification of Directors and Officers.

Israeli  law  permits a  company  to insure  an  Office  Holder  in  respect  of
liabilities  incurred by him or her as a result of the breach of his or her duty
of care to the company or to another person, or as a result of the breach of his
or her fiduciary duty to the company, to the extent that he or she acted in good
faith and had  reasonable  cause to believe that the act would not prejudice the
company. A company can also insure an Office Holder for monetary  liabilities as
a result of an act or omission that he or she  committed in connection  with his
or her serving as an Office Holder.  Moreover, a company can indemnify an Office
Holder for any of the following  obligations or expenses incurred as a result of
an act or omission of such  persons in their  capacity  as Office  Holders:  (a)
monetary liability imposed upon him or her in favor of other persons pursuant to
a court judgment,  including a settlement or an arbitrator's  decision confirmed
by a court and (b) reasonable  litigation  expenses,  including attorneys' fees,
actually  incurred  by him or her or imposed  upon him or her by a court,  in an
action,  suit or  proceeding  brought  against him or her by or on behalf of the
company or other persons,  in connection  with a criminal  action in which he or
she was acquitted or in connection with a criminal action which does not require
criminal intent in which he or she was convicted.

Our Articles of Association  allow us to insure and indemnify  Office Holders to
the fullest extent  permitted by law provided such insurance or  indemnification
is approved in accordance with Israel's  Companies Law. The Company has acquired
directors' and officers' liability insurance covering the officers and directors
of the Company and its subsidiaries for certain claims. In addition, the Company
has entered  into an  undertaking  to  indemnify  the  directors  of the Company
subject to  certain  limitations,  as well as  Indemnification  and  Exculpation
Agreements,  and these  undertakings  and  agreements  have been ratified by our
shareholders.

Certain members of our management team are officers of our subsidiary, Commtouch
Inc.,  a  California  Corporation,  or reside in  California.  The  Articles  of
Incorporation  of Commtouch Inc.  provide that the liability of the directors of
the corporation  for monetary  damages shall be eliminated to the fullest extent
permissible  under  California  law and that the  corporation  is  authorized to
provide  for the  indemnification  of agents of the  corporation,  as defined in
Section  317 of the  California  General  Corporation  Law,  in  excess  of that
expressly permitted by Section 317 for breach of duty to the corporation and its
shareholders to the fullest extent permissible under California law.

With  respect to all  proceedings  other than  shareholder  derivative  actions,
Section 317 permits a California  corporation to indemnify any of its directors,
officers or other agents only if such person acted in good faith and in a manner
such person  reasonably  believed to be in the best interests of the corporation
and, in the case of a criminal  proceeding,  had no reasonable  cause to believe
the conduct of such person was unlawful.  In the case of derivative  actions,  a
California  corporation  may indemnify any of its directors,  officers or agents
only if such person acted in good faith and in a manner such person  believed to
be in the best interests of the corporation and its  shareholders.  Furthermore,
in derivative  actions,  no indemnification is permitted (i) with respect to any
matter with respect to which the person to be  indemnified  has been held liable
to the corporation,  unless such  indemnification is approved by the court; (ii)
of amounts paid in settling or otherwise  disposing of a pending  action without
court  approval;  or (iii) of expenses  incurred in  defending a pending  action
which is settled or otherwise disposed of without court approval.  To the extent
that a director,  officer or agent of a corporation  has been  successful on the
merits in defense of any  proceeding for which  indemnification  is permitted by
Section 317, a corporation  is obligated by Section 317 to indemnify such person
against  expenses  actually  and  reasonably  incurred  in  connection  with the
proceeding.

Pursuant to the terms under which the ordinary shares were issued to the selling
securityholders, the Company has agreed to indemnify the selling securityholders
against such  liabilities as they may incur as a result of any untrue  statement
of a material fact in the  Registration  Statement,  or any omission  therein to
state a material fact necessary in order to make the  statements  made, in light
of  the  circumstances  under  which  they  were  made,  not  misleading.   Such
indemnification includes liabilities under the Securities Act, the Exchange Act,
state  securities laws and the rules  thereunder,  but excludes  liabilities for
statements or omissions that were based on  information  provided by the selling
securityholders,  as  to  which  the  selling  securityholders  have  agreed  to
indemnify the Company.

                                      II-1



Item 9. Exhibits.

The exhibits listed on the exhibit index to this filing are incorporated  herein
by reference.


Item 10. Undertakings.

(a)  The undersigned Registrant hereby undertakes:

     (1)  To file during any period in which  offers or sales are being made,  a
post-effective amendment to this Registration Statement:

          (i) to include  any  prospectus  required  by Section  10(a)(3) of the
     Securities Act;

          (ii) to reflect in the  prospectus  any facts or events  arising after
     the  effective  date of the  Registration  Statement  (or the  most  recent
     post-effective amendment thereof) which,  individually or in the aggregate,
     represent  a  fundamental  change  in  the  information  set  forth  in the
     Registration Statement.

          (iii) to include any material  information with respect to the Plan of
     Distribution not previously disclosed in the Registration  Statement or any
     other material change to such information in the Registration Statement.

Provided,  however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the
information  required  to be  included in a  post-effective  amendment  by those
paragraphs  is  contained  in periodic  reports  filed with or  furnished to the
Commission  by the  Registrant  pursuant  to Section 13 or Section  15(d) of the
Exchange Act that are incorporated by reference in the Registration Statement.

     (2) That, for the purpose of determining  any liability under the 1933 Act,
each such  post-effective  amendment  shall be  deemed to be a new  Registration
Statement relating to the securities  offered therein,  and the offering of such
securities  at that time shall be deemed to be the  initial  bona fide  offering
thereof.

     (3) To remove from registration by means of a post-effective  amendment any
of the securities being registered which remain unsold at the termination of the
offering.

     (4) To file a  post-effective  amendment to the  Registration  Statement to
include any financial  statements required by Item 8.A of Form 20-F at the start
of  any  delayed  offering  or  throughout  a  continuous  offering.   Financial
statements  and  information  otherwise  required  by  Section  10(a)(3)  of the
Securities Act need not be furnished,  provided that the Registrant  includes in
the prospectus,  by means of a post-effective  amendment,  financial  statements
required  pursuant to this paragraph (a)(4) and other  information  necessary to
ensure that all other  information  in the  prospectus is at least as current as
the date of those  financial  statements.  Notwithstanding  the foregoing,  with
respect to Registration Statements on Form F-3, a post-effective  amendment need
not be filed to include financial statements and information required by Section
10(a)(3)  of the  Securities  Act or  Item  8.A of Form  20-F if such  financial
statements  and  information  are  contained in periodic  reports  filed with or
furnished to the Commission by the Registrant  pursuant to Section 13 or Section
15(d) of the Exchange Act that are incorporated by reference in the Form F-3.

(b)  The  undersigned   Registrant  hereby  undertakes  that,  for  purposes  of
determining  any liability  under the Securities Act of 1933, each filing of the
Registrant's  annual  report  pursuant to section  13(a) or section 15(d) of the
Securities  Exchange  Act of  1934  that is  incorporated  by  reference  in the
Registration  Statement  shall  be  deemed  to be a new  Registration  Statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

(c) Insofar as indemnification  for liabilities arising under the Securities Act
of 1933 may be permitted to directors,  officers and controlling  persons of the
Registrant pursuant to the foregoing  provisions,  or otherwise,  the Registrant
has been advised that in the opinion of the Securities  and Exchange  Commission
such indemnification is against public policy as expressed in the Securities Act
and is, therefore,  unenforceable. In the event that a claim for indemnification
against  such  liabilities  (other than  payment by the  Registrant  of expenses
incurred or paid by a director,  officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as  expressed  in the  Securities  Act and will be  governed by the final
adjudication of such issue.

                                      II-2






                                   SIGNATURES

Pursuant to the  requirements  of the  Securities  Act of 1933,  the  Registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements  for  filing  on Form F-3 and has  duly  caused  this  Registration
Statement  to be  signed  on its  behalf  by  the  undersigned,  thereunto  duly
authorized, in the city of Mountain View, state of California, on July 1, 2004.

                                           COMMTOUCH SOFTWARE LTD.

                                           By:   /s/ DEVYANI PATEL
                                           ------------------------------------
                                                 Devyani Patel
                                                 Vice President, Finance

Pursuant to the  requirements of the Securities Act of 1933,  this  Registration
Statement has been signed by the following  persons in the capacities and on the
dates indicated.



Name                                      Title                                                        Date
--------------------------------------    ---------------------------------------------------------    ------------------------
                                                                                                 
/s/ GIDEON MANTEL*                        Chief Executive Officer and Director                         June 30, 2004
--------------------------------------    (Principal Executive Officer)
Gideon Mantel

/s/ DEVYANI PATEL*                        Vice President, Finance                                      June 30, 2004
--------------------------------------    (Principal Financial and Accounting Officer)
Devyani Patel

/s/ CAROLYN CHIN*                         Director, Chairman of the Board                              June 30, 2004
--------------------------------------
Carolyn Chin

/s/ AMIR LEV*                             Director                                                     June 30, 2004
--------------------------------------
Amir Lev

/s/ OFER SEGEV*                           Director                                                     June 30, 2004
--------------------------------------
Ofer Segev

/s/ RICHARD SORKIN*                       Director                                                     June 30, 2004
--------------------------------------
Richard Sorkin

/s/ NAHUM SHARFMAN*                       Director                                                     June 30, 2004
--------------------------------------
Nahum Sharfman

/s/ LLOYD E. SHEFSY*                      Director                                                     June 30, 2004
--------------------------------------
Lloyd E. Shefsky

*/s/ DEVYANI PATEL                        *Individually and as Attorney-in-fact and Authorized         June 30, 2004
--------------------------------------    U.S. Representative
Devyani Patel





                                  Exhibit Index

Exhibit Number                            Description of Document
--------------           -------------------------------------------------------


        5.1              Opinion of Naschitz,  Brandes & Co., Israeli counsel to
                         the  Registrant,  as  to  certain  legal  matters  with
                         respect to the legality of the shares.

       23.1              Consent of Kost,  Forer,Gabbay & Kasierer , a Member of
                         Ernst & Young Global.

       23.2              Consent  of  Naschitz,  Brandes  &  Co.  (contained  in
                         Exhibit 5.1).

       24.1              Power of Attorney of directors and certain  officers of
                         the Registrant.

       99.1              Securities  Purchase Agreement dated as of May 18, 2004
                         by and between  Commtouch  Software Ltd. and the Buyers
                         listed on the Schedule of Buyers thereto  (incorporated
                         by  reference  to  Exhibit  99.1 to Report  of  Foreign
                         Private  Issuer  on Form 6-K for the  month of May 2004
                         (File No. 000-26495).