SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

WOESSNER RONALD A

(Last)

(First)

(Middle)

2711 N. HASKELL AVENUE

SUITE 2300, LB 36

(Street)

DALLAS

75204

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
ZIX CORP [ ZIXI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Sr. Vice President

3. Date of Earliest Transaction (Month/Day/Year)
04/08/2004

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/08/2004	04/08/2004	M		1,041	A	$4.25	7,031	D
Common Stock	04/08/2004	04/08/2004	S⁽¹⁾		1,041	D	$16.01	5,990	D
Common Stock	04/08/2004	04/08/2004	M		4,584	A	$5.15	10,574	D
Common Stock	04/08/2004	04/08/2004	S⁽¹⁾		4,584	D	$16.01	5,990	D
Common Stock	04/08/2004	04/08/2004	M		6,000	A	$5.25	11,990	D
Common Stock	04/08/2004	04/08/2004	S⁽¹⁾		6,000	D	$16.01	5,990	D
Common Stock	04/08/2004	04/08/2004	M		2,500	A	$5.75	8,490	D
Common Stock	04/08/2004	04/08/2004	S⁽¹⁾		2,500	D	$16.01	5,990	D
Common Stock	04/08/2004	04/08/2004	M		1,563	A	$10	7,553	D
Common Stock	04/08/2004	04/08/2004	S⁽¹⁾		1,563	D	$16.01	5,990	D
Common Stock	04/08/2004	04/08/2004	M		1,187	A	$10	7,177	D
Common Stock	04/08/2004	04/08/2004	S⁽¹⁾		1,187	D	$16.01	5,990	D
Common Stock	04/08/2004	04/08/2004	M		3,125	A	$10.75	9,115	D
Common Stock	04/08/2004	04/08/2004	S⁽¹⁾		3,125	D	$16.01	5,990	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock Option	$4.25	04/08/2004	04/08/2004	M⁽¹⁾			1,041	02/21/2004	02/20/2004	Common Stock	1,041	$0	4,166	D
Common Stock Option	$5.15	04/08/2004	04/08/2004	M⁽¹⁾			4,584	01/22/2004	01/21/2012	Common Stock	4,584	$0	8,333	D
Common Stock Option	$5.25	04/08/2004	04/08/2004	M⁽¹⁾			6,000	04/25/2001	10/24/2005	Common Stock	6,000	$0	0	D
Common Stock Option	$5.75	04/08/2004	04/08/2004	M⁽¹⁾			2,500	04/29/2002	10/28/2006	Common Stock	2,500	$0	0	D
Common Stock Option	$10	04/08/2004	04/08/2004	M⁽¹⁾			1,563	09/23/1997	09/22/2004	Common Stock	1,563	$0	0	D
Common Stock Option	$10	04/08/2004	04/08/2004	M⁽¹⁾			1,187	06/30/2000	12/19/2004	Common Stock	1,187	$0	5,063	D
Common Stock Option	$10.75	04/08/2004	04/08/2004	M⁽¹⁾			3,125	04/16/1997	04/15/2004	Common Stock	3,125	$0	0	D

Explanation of Responses:

1. Sale pursuant to Rule 10b5-1 trading plan

	/s/ Ronald A. Woessner	04/09/2004
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.