Exhibit 23.1

                        CONSENT OF INDEPENDENT AUDITORS

We consent to the  reference to our firm under the caption  "Experts" and to the
incorporation  by reference of our report dated January 31, 2000 with respect to
the consolidated  financial  statements and schedule of Commtouch  Software Ltd.
included in its Annual Report (Form 20-F) for the year ended  December 31, 1999,
filed with the Securities and Exchange Commission in the Registration  Statement
(Form F-3) of Commtouch  Software Ltd. for the  registration of 2,052,051 of its
ordinary  shares and a warrant to  purchase  1,136,000  of its  ordinary  shares
issuable upon exercise of the warrant.

Tel-Aviv, Israel
July 26, 2000

KOST, FORER & GABBAY
A member of Ernst & Young international

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