Exhibit 12(a).1

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002




In connection with the Annual Report of Commtouch  Software Ltd. (the "Company")
on Form  20-F  for the  period  ending  December  31,  2002 as  filed  with  the
Securities and Exchange Commission on the date hereof (the "Report"),  I, Gideon
Mantel, Chief Executive Officer of the Company,  certify,  pursuant to 18 U.S.C.
Section 1350, as adopted  pursuant to Section 906 of the  Sarbanes-Oxley  Act of
2002, that:

         (1)      The Report fully  complies  with the  requirements  of Section
                  13(a) or 15(d) of the Securities Exchange Act of 1934; and

         (2)      The information  contained in the Report fairly  presents,  in
                  all material respects,  the financial condition and results of
                  operations of the Company.


                                                     /s/Gideon Mantel
                                                     ----------------
                                                     Gideon Mantel
                                                     Chief Executive Officer
                                                     July 15, 2003

A signed  original of this  written  statement  required by Section 906 has been
provided to [name of issuer] and will be retained by Commtouch Software Ltd. and
furnished to the Securities and Exchange Commission or its staff upon request.