<SEC-DOCUMENT>0001193125-21-341836-index.html : 20211129
<SEC-HEADER>0001193125-21-341836.hdr.sgml : 20211129
<ACCEPTANCE-DATETIME>20211129082733
ACCESSION NUMBER:		0001193125-21-341836
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20211129
DATE AS OF CHANGE:		20211129

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ZIX CORP
		CENTRAL INDEX KEY:			0000855612
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				752216818
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-40533
		FILM NUMBER:		211452977

	BUSINESS ADDRESS:	
		STREET 1:		2711 NORTH HASKELL AVENUE
		STREET 2:		SUITE 2300, LB 36
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75204-2960
		BUSINESS PHONE:		214-370-2000

	MAIL ADDRESS:	
		STREET 1:		2711 NORTH HASKELL AVENUE
		STREET 2:		SUITE 2300, LB 36
		CITY:			DALLAS
		STATE:			TX
		ZIP:			75204-2960

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ZIXIT CORP
		DATE OF NAME CHANGE:	19991013

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CUSTOMTRACKS CORP /TX/
		DATE OF NAME CHANGE:	19980904

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMTECH CORP
		DATE OF NAME CHANGE:	19920703

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OPEN TEXT CORP
		CENTRAL INDEX KEY:			0001002638
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
		IRS NUMBER:				980154400
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		275 FRANK TOMPA DRIVE
		STREET 2:		WATERLOO
		CITY:			ONTARIO CANADA
		STATE:			A6
		ZIP:			N2L 0A1
		BUSINESS PHONE:		519-888-7111

	MAIL ADDRESS:	
		STREET 1:		275 FRANK TOMPA DRIVE
		STREET 2:		WATERLOO
		CITY:			ONTARIO CANADA
		STATE:			A6
		ZIP:			N2L 0A1
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>d196842dsc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: d196842dsc13da.htm

</DOCUMENT>
</SEC-DOCUMENT>