UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549


                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


                Date of Report (Date of earliest event reported):
                         April 25, 2003 (April 24, 2003)



                                 ZIX CORPORATION
             (Exact name of registrant as specified in its charter)

        Texas                          0-17995                     75-2216818

(State or other                       (Commission File            (IRS employer
Jurisdiction of                          Number)             Identification No.)
Incorporation)

                            2711 North Haskell Avenue
                                Suite 2300, LB 36
                            Dallas, Texas 75204-2960
               (Address of principal executive offices) (Zip code)


               Registrant's telephone number, including area code:
                                 (214) 370-2000










Item 9.              Regulation FD Disclosure.

           The information in this report is being furnished (i) pursuant to
 Regulation FD, and (ii) pursuant to Item 12 "Results of Operations and
 Financial Condition" (in accordance with SEC interim guidance issued March 27,
 2003). In accordance with General Instructions B.2 and B.6 of Form 8-K, the
 information in this report shall not be deemed to be "filed" for purposes of
 Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be
 deemed incorporated by reference in any filing under the Securities Act of
 1934, as amended. The furnishing of the information set forth in this report is
 not intended to, and does not, constitute a determination or admission as to
 the materiality or completeness of such information.

           On April 24, 2003, Zix Corporation, a Texas corporation (the
 "Company"), issued a press release announcing the Company's financial results
 for the fiscal quarter ended March 31, 2003. A copy of the Company press
 release is attached hereto as Exhibit 99.1 and incorporated herein by
 reference.

                                   SIGNATURES

           Pursuant to the requirements of the Securities Exchange Act of 1934,
as amended, the registrant has duly caused this report to be signed on its
behalf by the undersigned hereunto duly authorized.


                                 ZIX CORPORATION



Date:      April 25, 2003        By:       /s/ Steve M. York
                                      ------------------------------------------
                                      Steve M. York
                                      Senior Vice President, Chief Financial
                                      Officer and Treasurer
















                                INDEX TO EXHIBITS

Exhibit No.             Description

99.1                    Press Release  dated April 24, 2003 titled "Zix
                        Corporation  Announces  First  Quarter 2003  Financial
                        Results" announcing  earnings for the fiscal quarter
                        ended March 31, 2003 (furnished and not filed for
                        purposes of Section 18 of the Securities  Exchange
                        Act of 1934, as amended,  and not deemed  incorporated
                        by reference in any filing under the Securities Act of
                        1934, as amended).