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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<DIV align="center" style="font-size: 10pt; margin-top: 12pt">As
filed with the Securities and Exchange Commission on March 22, 2007.</DIV>

<DIV align="right" style="font-size: 10pt">Registration No.&nbsp;333-<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U>.</DIV>



<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>






<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES<BR>
SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

<DIV align="center" style="font-size: 12pt"><B>WASHINGTON, D.C. 20549</B>
</DIV>

<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933</B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>ZIX CORPORATION</B>
</DIV>

<DIV align="center" style="font-size: 10pt">(Exact Name of Registrant as Specified in Its Charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top">Texas
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">75-2216818</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><I>(State or other jurisdiction <BR>
of incorporation or organization)</I>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><I>(I.R.S. Employer<BR>
Identification No.)</I></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="bottom">2711 N. Haskell Avenue <BR>
Suite&nbsp;2200, LB 36<BR>
Dallas, Texas 75204-2960
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">Barry W. Wilson<BR>
2711 N. Haskell Avenue<BR>
Suite&nbsp;2200, LB 36<BR>
Dallas, Texas 75204-2960 (214)&nbsp;370-2000</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><I>(Address, including zip code, <BR>
of principal executive offices)</I>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><I>(Name, address, including zip code,<BR>
and telephone number, including area<BR>
code, of agent for service)</I></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>ZIX CORPORATION 2005 STOCK COMPENSATION PLAN<BR>
(Amended and Restated as of June&nbsp;13, 2006)</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>ZIX CORPORATION 2006 DIRECTORS&#146; STOCK OPTION PLAN<BR>
(Adopted June&nbsp;13, 2006)</B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B><I>(Full title of the plan)</I></B></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>Calculation of Registration Fee</B></DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="1%">&nbsp;</TD>
    <TD width="54%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Title of</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Proposed Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount of</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Securities</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Offering Price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Aggregate</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Registration</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>to be Registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Registered</B><SUP style="font-size: 85%; vertical-align: text-top"><B>(1)</B></SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>per Share</B><SUP style="font-size: 85%; vertical-align: text-top"><B>(2)</B></SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Offering Price</B><SUP style="font-size: 85%; vertical-align: text-top"><B>(2)</B></SUP></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Fee</B><SUP style="font-size: 85%; vertical-align: text-top"><B>(2)</B></SUP></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

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<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock, $.01
par value</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="center" valign="bottom" style="border-top: 2px solid #000000">1,250,000 Shares</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$1.54</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="center" valign="bottom" style="border-top: 2px solid #000000">$1,925,000</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>

<TD align="center" valign="bottom" style="border-top: 2px solid #000000">$59.10</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="15" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>



<DIV style="margin-top: 3pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>
<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Securities being registered consist of 500,000 additional shares issuable under the Zix
Corporation 2005 Stock Compensation Plan (the &#147;2005 Plan&#148;) and 750,000 shares issuable under
the Zix Corporation 2006 Directors&#146; Stock Option Plan (the &#147;2006 Plan&#148;), as of the date
hereof. In addition, pursuant to Rule 416(c) under the Securities Act of 1933, as amended
(the &#147;Securities Act&#148;), this registration statement also covers an indeterminate amount of
common stock that may be issuable pursuant to the anti-dilution provisions of the 2005 Plan
and 2006 Plan.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated solely for the purpose of calculating the registration fee. The registration fee
has been calculated in accordance with Rules 457(c) and 457(h) under the Securities Act on the
basis of the average of the high and low prices of the common stock as quoted on the NASDAQ
Global Market System on March&nbsp;16, 2007, which was $1.54.</TD>
</TR>

</TABLE>
</DIV>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>








<P align="center" style="font-size: 10pt"><!-- Folio --><!-- /Folio -->
</DIV>

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<P><HR noshade><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART I</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3. Incorporation of Documents by Reference.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of Securities.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of Named Experts and Counsel.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of Directors and Officers.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption from Registration Claimed.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits.</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings.</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010">POWER OF ATTORNEY</A></TD></TR>
<TR><TD colspan="9"><A HREF="#011">INDEX TO EXHIBITS</A></TD></TR>
<TR><TD colspan="9"><A HREF="d44868exv5w1.htm">Opinion of Ronald A. Woessner</A></TD></TR>
<TR><TD colspan="9"><A HREF="d44868exv23w2.htm">Consent of Whitley Penn LLP</A></TD></TR>
<TR><TD colspan="9"><A HREF="d44868exv23w3.htm">Consent of Deloitte & Touche LLP</A></TD></TR>
</TABLE>
</CENTER>
<!-- /TOC -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>


<!-- link1 "PART I" -->
<DIV align="left"><A NAME="000"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART I</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</B>

</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All information required by Part&nbsp;I to be contained in the prospectus is omitted from this
registration statement in accordance with Rule&nbsp;428 under the Securities Act of 1933, as amended
(the &#147;Securities Act&#148;).
</DIV>

<!-- link1 "PART II" -->
<DIV align="left"><A NAME="001"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</B>

</DIV>

<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference." -->
<DIV align="left"><A NAME="002"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents are hereby incorporated herein by reference:
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;our Annual Report on Form 10-K for our fiscal year ended December&nbsp;31, 2006, filed March
21, 2007;
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;our Current Report on Form 8-K filed February&nbsp;28, 2007; and
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;the description of our common stock contained in our Registration Statement on Form 8-A,
dated September&nbsp;25, 1989, including any amendment or report filed for the purpose of updating such
description.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents that we subsequently file pursuant to Sections&nbsp;13(c), 14 and 15(d) of the
Securities Exchange Act of 1934, as amended, prior to the filing of a post-effective amendment
which indicates that all securities offered have been sold or which deregisters all securities then
remaining unsold, shall be deemed to be incorporated by reference in this registration statement
and to be a part hereof from the date of filing of such documents.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any statement contained herein or in a document incorporated or deemed to be incorporated
herein by reference shall be deemed to be modified or superseded for purposes of this registration
statement to the extent that a statement contained herein or in any other subsequently filed
document which also is or is deemed to be incorporated herein by reference modifies or supersedes
such earlier statement. Any statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this registration statement.
</DIV>

<!-- link2 "Item&nbsp;4. Description of Securities." -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of Securities.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The common stock is registered under Section&nbsp;12 of the Exchange Act.
</DIV>


<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel." -->
<DIV align="left"><A NAME="004"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The validity of the common stock offered hereby has been passed upon for the registrant by
Ronald A. Woessner, Senior Vice President, General Counsel and Secretary of the registrant. Mr.
Woessner is regularly employed by the registrant, participates in the registrant&#146;s employee benefit
plans under which he may receive shares of common stock, and currently beneficially owns less than
1% of the outstanding shares of the registrant&#146;s common stock.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->II-1<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers." -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of Directors and Officers.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;As permitted by the Texas Business Corporation Act, the registrant&#146;s Restated Articles of
Incorporation provide that its directors shall not be personally liable to the registrant or its
shareholders for monetary damages for breach of fiduciary duty as a director, except for liability
for (i)&nbsp;any breach of the director&#146;s duty of loyalty to the registrant or its shareholders, (ii)
any act or omission not in good faith or which involves intentional misconduct or a knowing
violation of law, (iii)&nbsp;any transaction from which the director derived any improper personal
benefit, (iv)&nbsp;any act or omission where the liability of the director is expressly provided by
statute, or (v)&nbsp;any act related to an unlawful stock repurchase or payment of a dividend. In
addition, the registrant&#146;s Restated Articles of Incorporation and Restated Bylaws include certain
provisions permitted by the Texas Business Corporation Act whereby its directors, officers,
employees, and agents generally are to be indemnified against certain liabilities to the fullest
extent authorized by the Texas Business Corporation Act. Furthermore, an agreement between the
registrant and Richard D. Spurr (the registrant&#146;s chairman, chief executive officer, president and
chief operating officer), dated January&nbsp;20, 2004, provides Mr.&nbsp;Spurr with a contractual right to
indemnification as an officer and/or director of the registrant as set forth in Article&nbsp;VII of the
registrant&#146;s Restated Bylaws, dated August&nbsp;1, 2002. The registrant maintains insurance on behalf
of its directors and executive officers insuring them against any liability asserted against them
in their capacities as directors or officers or arising out of such status.
</DIV>

<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed." -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from Registration Claimed.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>

<!-- link2 "Item&nbsp;8. Exhibits." -->
<DIV align="left"><A NAME="007"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Exhibits to this registration statement are listed in the Index to Exhibits on page II-6
of this registration statement, which Index is incorporated herein by reference.
</DIV>

<!-- link2 "Item&nbsp;9. Undertakings." -->
<DIV align="left"><A NAME="008"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned registrant hereby undertakes:
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To file, during any period in which offers or sales are being
made, a post-effective amendment to this Registration Statement:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(i)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To include any prospectus required by Section
10(a)(3) of the Securities Act;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(ii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To reflect in the prospectus any facts or events
arising after the effective date of this 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 this Registration Statement. Notwithstanding the foregoing, any
increase or decrease in volume of securities offered (if the total
dollar value of securities offered would not exceed that which was registered) and any
deviation from the low or high end of the estimated maximum </TD>
</TR>

</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->II-2<!-- /Folio -->
</DIV>

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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR valign="top" style="font-size: 10pt; color: #textcolor#; background: #bgcolor#">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>offering range may be reflected in the form of a prospectus filed with the
Commission pursuant to Rule 424(b) if, in the aggregate, the changes
in volume and price represent no more than a 20% change in the maximum
aggregate offering price set forth in the &#147;Calculation of Registration
Fee&#148; table in the effective Registration Statement;</TD>
</TR>
<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="8%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(iii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To include any material information with respect
to the plan of distribution not previously disclosed in this
Registration Statement or any material change to such information in
this Registration Statement;</TD>
</TR>

</TABLE>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt; margin-left: 4%">provided, however, that the undertakings set forth in paragraphs (i)&nbsp;and (ii)&nbsp;above
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&nbsp;13 or Section 15(d) of the Exchange
Act that are incorporated by reference in this Registration Statement.
</DIV>

<DIV style="margin-top: 6pt">
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>That, for the purpose of determining any liability under the
Securities 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.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="4%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The undersigned registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the registrant&#146;s annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan&#146;s annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in this 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.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the registrant pursuant to the
provisions described under Item&nbsp;6 above, or otherwise, the registrant has been advised that in the
opinion of the 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 the 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.
</DIV>

<P align="center" style="font-size: 10pt"><!-- Folio -->II-3<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;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 S-8 and
has duly caused this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Dallas, State of Texas, on March&nbsp;22, 2007.
</DIV>

<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left">ZIX CORPORATION<BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/ Barry W. Wilson
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Barry W. Wilson&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chief Financial Officer and Treasurer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>


<P align="center" style="font-size: 10pt"><!-- Folio -->II-4<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "POWER OF ATTORNEY" -->
<DIV align="left"><A NAME="010"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>POWER OF ATTORNEY</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Know all those by these presents that each person whose signature appears below constitutes
and appoints each of Barry W. Wilson and Richard D. Spurr, each acting alone, his true and lawful
attorney-in-fact and agent, with full power of substitution and resubstitution, for such person and
in his name, place and stead, in any and all capacities, in connection with the registration
statement on Form S-8 of Zix Corporation under the Securities Act of 1933, as amended, including,
without limitation of the generality of the foregoing, to sign the registration statement in the
name and on behalf of Zix Corporation, or on behalf of the undersigned as a director or officer of
Zix Corporation, and any and all amendments or supplements to the registration statement, including
any and all stickers and post-effective amendments to the registration statement, and to sign any
and all additional registration statements relating to the same offering of securities as the
registration statement that are filed pursuant to Rule&nbsp;462 under the Securities Act of 1933, as
amended, and to file the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission and any applicable securities exchange or
securities self-regulatory body, granting unto said attorneys-in-fact and agents, each acting
alone, full power and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and purposes as he might or
could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or
their substitutes or substitute, may lawfully do or cause to be done by virtue hereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this registration statement has
been signed by the following persons in the capacities indicated on March&nbsp;22, 2007.
</DIV>
<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="40%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="54%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="CENTER" style="border-bottom: 1px solid #000000">Signature</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000">Title</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Richard D. Spurr
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Richard D. Spurr
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chairman, Chief Executive Officer, President, Chief Operating Officer
and Director (Principal Executive Officer)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Barry W. Wilson
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Barry W. Wilson
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Financial Officer and Treasurer
(Principal Financial and Accounting Officer)</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Robert C. Hausmann
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Robert C. Hausmann</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR><TD>&nbsp;</TD></TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px"><DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Charles N. Kahn III
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ James S. Marston
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
James S. Marston
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Antonio R. Sanchez III
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Antonio R. Sanchez III
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Paul E. Schlosberg
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Paul E. Schlosberg
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Dr.&nbsp;Ben G. Streetman
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
Dr.&nbsp;Ben G. Streetman
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><!-- Folio -->II-5<!-- /Folio -->
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">

<!-- link1 "INDEX TO EXHIBITS" -->
<DIV align="left"><A NAME="011"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>INDEX TO EXHIBITS</B>
</DIV>

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="88%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" colspan="3">Exhibit</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" colspan="3" style="border-bottom: 1px solid #000000">Number</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left" style="border-bottom: 1px solid #000000">Description</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">4.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Specimen certificate for common stock of Zix Corporation. Filed as Exhibit&nbsp;4.1 to Zix
Corporation&#146;s Annual Report on Form&nbsp;10-K for the year ended December&nbsp;31, 1999, and
incorporated herein by reference.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">5.1*</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of Ronald A. Woessner as to the validity of the securities being registered.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">10.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Zix Corporation 2006 Directors&#146; Stock Option Plan. Filed as Exhibit&nbsp;10.1 to Zix Corporation&#146;s
filing on Form&nbsp;8-K filed June&nbsp;14, 2006, and incorporated herein by reference.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">10.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Zix Corporation 2006 Stock Compensation Plan. Filed as Exhibit&nbsp;10.2 to Zix Corporation&#146;s
filing on Form&nbsp;8-K, filed June&nbsp;14, 2006, and incorporated herein by reference.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">23.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Ronald A. Woessner (included in his opinion filed as Exhibit&nbsp;5.1).</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">23.2*</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Whitley Penn LLP.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">23.3*</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Deloitte &#038; Touche LLP.</DIV></TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">&nbsp;</TD>
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="LEFT" valign="top">24.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Power of Attorney (included on the signature page hereto).</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">*</TD>
    <TD>&nbsp;</TD>
    <TD>Filed electronically herewith.</TD>
</TR>

</TABLE>




<P align="center" style="font-size: 10pt"><!-- Folio -->II-6<!-- /Folio -->
</DIV>


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sv8
Table of Contents
As
filed with the Securities and Exchange Commission on March 22, 2007.
Registration No. 333-
.
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
ZIX CORPORATION
(Exact Name of Registrant as Specified in Its Charter)
Texas
75-2216818
(State or other jurisdiction
of incorporation or organization)
(I.R.S. Employer
Identification No.)
2711 N. Haskell Avenue
Suite 2200, LB 36
Dallas, Texas 75204-2960
Barry W. Wilson
2711 N. Haskell Avenue
Suite 2200, LB 36
Dallas, Texas 75204-2960 (214) 370-2000
(Address, including zip code,
of principal executive offices)
(Name, address, including zip code,
and telephone number, including area
code, of agent for service)
ZIX CORPORATION 2005 STOCK COMPENSATION PLAN
(Amended and Restated as of June 13, 2006)
ZIX CORPORATION 2006 DIRECTORS' STOCK OPTION PLAN
(Adopted June 13, 2006)
(Full title of the plan)
Calculation of Registration Fee
Title of
Amount
Proposed Maximum
Proposed Maximum
Amount of
Securities
to be
Offering Price
Aggregate
Registration
to be Registered
Registered
(1)
per Share
(2)
Offering Price
(2)
Fee
(2)
Common Stock, $.01
par value
1,250,000 Shares
$1.54
$1,925,000
$59.10
(1)
Securities being registered consist of 500,000 additional shares issuable under the Zix
Corporation 2005 Stock Compensation Plan (the "2005 Plan") and 750,000 shares issuable under
the Zix Corporation 2006 Directors' Stock Option Plan (the "2006 Plan"), as of the date
hereof. In addition, pursuant to Rule 416(c) under the Securities Act of 1933, as amended
(the "Securities Act"), this registration statement also covers an indeterminate amount of
common stock that may be issuable pursuant to the anti-dilution provisions of the 2005 Plan
and 2006 Plan.
(2)
Estimated solely for the purpose of calculating the registration fee. The registration fee
has been calculated in accordance with Rules 457(c) and 457(h) under the Securities Act on the
basis of the average of the high and low prices of the common stock as quoted on the NASDAQ
Global Market System on March 16, 2007, which was $1.54.
TABLE OF CONTENTS
PART I
PART II
Item 3. Incorporation of Documents by Reference.
Item 4. Description of Securities.
Item 5. Interests of Named Experts and Counsel.
Item 6. Indemnification of Directors and Officers.
Item 7. Exemption from Registration Claimed.
Item 8. Exhibits.
Item 9. Undertakings.
SIGNATURES
POWER OF ATTORNEY
INDEX TO EXHIBITS
Opinion of Ronald A. Woessner
Consent of Whitley Penn LLP
Consent of Deloitte & Touche LLP
Table of Contents
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
All information required by Part I to be contained in the prospectus is omitted from this
registration statement in accordance with Rule 428 under the Securities Act of 1933, as amended
(the "Securities Act").
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
The following documents are hereby incorporated herein by reference:
(a) our Annual Report on Form 10-K for our fiscal year ended December 31, 2006, filed March
21, 2007;
(b) our Current Report on Form 8-K filed February 28, 2007; and
(c) the description of our common stock contained in our Registration Statement on Form 8-A,
dated September 25, 1989, including any amendment or report filed for the purpose of updating such
description.
All documents that we subsequently file pursuant to Sections 13(c), 14 and 15(d) of the
Securities Exchange Act of 1934, as amended, prior to the filing of a post-effective amendment
which indicates that all securities offered have been sold or which deregisters all securities then
remaining unsold, shall be deemed to be incorporated by reference in this registration statement
and to be a part hereof from the date of filing of such documents.
Any statement contained herein or in a document incorporated or deemed to be incorporated
herein by reference shall be deemed to be modified or superseded for purposes of this registration
statement to the extent that a statement contained herein or in any other subsequently filed
document which also is or is deemed to be incorporated herein by reference modifies or supersedes
such earlier statement. Any statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this registration statement.
Item 4. Description of Securities.
The common stock is registered under Section 12 of the Exchange Act.
Item 5. Interests of Named Experts and Counsel.
The validity of the common stock offered hereby has been passed upon for the registrant by
Ronald A. Woessner, Senior Vice President, General Counsel and Secretary of the registrant. Mr.
Woessner is regularly employed by the registrant, participates in the registrant's employee benefit
plans under which he may receive shares of common stock, and currently beneficially owns less than
1% of the outstanding shares of the registrant's common stock.
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Item 6. Indemnification of Directors and Officers.
As permitted by the Texas Business Corporation Act, the registrant's Restated Articles of
Incorporation provide that its directors shall not be personally liable to the registrant or its
shareholders for monetary damages for breach of fiduciary duty as a director, except for liability
for (i) any breach of the director's duty of loyalty to the registrant or its shareholders, (ii)
any act or omission not in good faith or which involves intentional misconduct or a knowing
violation of law, (iii) any transaction from which the director derived any improper personal
benefit, (iv) any act or omission where the liability of the director is expressly provided by
statute, or (v) any act related to an unlawful stock repurchase or payment of a dividend. In
addition, the registrant's Restated Articles of Incorporation and Restated Bylaws include certain
provisions permitted by the Texas Business Corporation Act whereby its directors, officers,
employees, and agents generally are to be indemnified against certain liabilities to the fullest
extent authorized by the Texas Business Corporation Act. Furthermore, an agreement between the
registrant and Richard D. Spurr (the registrant's chairman, chief executive officer, president and
chief operating officer), dated January 20, 2004, provides Mr. Spurr with a contractual right to
indemnification as an officer and/or director of the registrant as set forth in Article VII of the
registrant's Restated Bylaws, dated August 1, 2002. The registrant maintains insurance on behalf
of its directors and executive officers insuring them against any liability asserted against them
in their capacities as directors or officers or arising out of such status.
Item 7. Exemption from Registration Claimed.
Not applicable.
Item 8. Exhibits.
The Exhibits to this registration statement are listed in the Index to Exhibits on page II-6
of this registration statement, which Index is incorporated herein by reference.
Item 9. 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 this 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 this Registration Statement. Notwithstanding the foregoing, any
increase or decrease in volume of securities offered (if the total
dollar value of securities offered would not exceed that which was registered) and any
deviation from the low or high end of the estimated maximum
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offering range may be reflected in the form of a prospectus filed with the
Commission pursuant to Rule 424(b) if, in the aggregate, the changes
in volume and price represent no more than a 20% change in the maximum
aggregate offering price set forth in the "Calculation of Registration
Fee" table in the effective Registration Statement;
(iii)
To include any material information with respect
to the plan of distribution not previously disclosed in this
Registration Statement or any material change to such information in
this Registration Statement;
provided, however, that the undertakings set forth in paragraphs (i) and (ii) above
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 this Registration Statement.
(2)
That, for the purpose of determining any liability under the
Securities 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.
(b) The undersigned registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the registrant's annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that is
incorporated by reference in this 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 may be
permitted to directors, officers and controlling persons of the registrant pursuant to the
provisions described under Item 6 above, or otherwise, the registrant has been advised that in the
opinion of the 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 the 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.
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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 S-8 and
has duly caused this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Dallas, State of Texas, on March 22, 2007.
ZIX CORPORATION
By:
/s/ Barry W. Wilson
Barry W. Wilson
Chief Financial Officer and Treasurer
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POWER OF ATTORNEY
Know all those by these presents that each person whose signature appears below constitutes
and appoints each of Barry W. Wilson and Richard D. Spurr, each acting alone, his true and lawful
attorney-in-fact and agent, with full power of substitution and resubstitution, for such person and
in his name, place and stead, in any and all capacities, in connection with the registration
statement on Form S-8 of Zix Corporation under the Securities Act of 1933, as amended, including,
without limitation of the generality of the foregoing, to sign the registration statement in the
name and on behalf of Zix Corporation, or on behalf of the undersigned as a director or officer of
Zix Corporation, and any and all amendments or supplements to the registration statement, including
any and all stickers and post-effective amendments to the registration statement, and to sign any
and all additional registration statements relating to the same offering of securities as the
registration statement that are filed pursuant to Rule 462 under the Securities Act of 1933, as
amended, and to file the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission and any applicable securities exchange or
securities self-regulatory body, granting unto said attorneys-in-fact and agents, each acting
alone, full power and authority to do and perform each and every act and thing requisite and
necessary to be done in and about the premises, as fully to all intents and purposes as he might or
could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or
their substitutes or substitute, may lawfully do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act of 1933, this registration statement has
been signed by the following persons in the capacities indicated on March 22, 2007.
Signature
Title
/s/ Richard D. Spurr
Richard D. Spurr
Chairman, Chief Executive Officer, President, Chief Operating Officer
and Director (Principal Executive Officer)
/s/ Barry W. Wilson
Barry W. Wilson
Chief Financial Officer and Treasurer
(Principal Financial and Accounting Officer)
/s/ Robert C. Hausmann
Director
Robert C. Hausmann
Director
Charles N. Kahn III
/s/ James S. Marston
James S. Marston
Director
/s/ Antonio R. Sanchez III
Antonio R. Sanchez III
Director
/s/ Paul E. Schlosberg
Paul E. Schlosberg
Director
/s/ Dr. Ben G. Streetman
Dr. Ben G. Streetman
Director
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INDEX TO EXHIBITS
Exhibit
Number
Description
4.1
Specimen certificate for common stock of Zix Corporation. Filed as Exhibit 4.1 to Zix
Corporation's Annual Report on Form 10-K for the year ended December 31, 1999, and
incorporated herein by reference.
5.1*
Opinion of Ronald A. Woessner as to the validity of the securities being registered.
10.1
Zix Corporation 2006 Directors' Stock Option Plan. Filed as Exhibit 10.1 to Zix Corporation's
filing on Form 8-K filed June 14, 2006, and incorporated herein by reference.
10.2
Zix Corporation 2006 Stock Compensation Plan. Filed as Exhibit 10.2 to Zix Corporation's
filing on Form 8-K, filed June 14, 2006, and incorporated herein by reference.
23.1
Consent of Ronald A. Woessner (included in his opinion filed as Exhibit 5.1).
23.2*
Consent of Whitley Penn LLP.
23.3*
Consent of Deloitte & Touche LLP.
24.1
Power of Attorney (included on the signature page hereto).
*
Filed electronically herewith.
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