EXHIBIT 23.2


                         CONSENT OF INDEPENDENT AUDITORS


We consent to the reference to our firm under the heading "Experts" in the
registration statement and related prospectus of Zix Corporation for the
registration of 153,344 shares of its common stock and to the incorporation by
reference therein of our report dated January 30, 2002, with respect to the
consolidated financial statements of Zix Corporation included in its Annual
Report (Form 10-K/A) for the year ended December 31, 2001, filed with the
Securities and Exchange Commission.

                                                           /s/ ERNST & YOUNG LLP


Dallas, Texas
November 1, 2002