EXHIBIT 4.3 REGISTRATION RIGHTS AGREEMENT REGISTRATION RIGHTS AGREEMENT (this "AGREEMENT"), dated as of March 3, 2003, by and among Zix Corporation (formerly known as Zixit Corporation), a Texas corporation, with headquarters located at 2711 N....Registration Rights Agreement • March 4th, 2003 • Zix Corp • Services-computer programming, data processing, etc. • New York
EXHIBIT 4.1 AGREEMENT REGARDING EXERCISE AND ISSUANCE OF WARRANTS AGREEMENT REGARDING EXERCISE AND ISSUANCE OF WARRANTS (the "AGREEMENT"), dated as of March 3, 2003, by and among Zix Corporation (formerly known as Zixit Corporation), a Texas...Agreement Regarding Exercise and Issuance of Warrants • March 4th, 2003 • Zix Corp • Services-computer programming, data processing, etc. • New York
