Audio to Be Webcasted Live and Available for Replay

DALLAS–(BUSINESS WIRE)–Zix Corporation (Zix) (NASDAQ: ZIXI), a leader in email security,
will hold its 2019 annual shareholders meeting at 10 a.m. CT on
Wednesday, June 5, 2019. Registration for the annual meeting will begin
at 9:30 a.m., and the company will host a live
audio webcast of the event.

The meeting will include brief remarks from Chief Executive Officer
David Wagner on the company’s recent financial and operational
achievements, as well as Zix’s outlook and strategic initiatives.

All shareholders and interested parties are invited to listen to the
webcast, accessible through Zix’s investor relations Web site at http://investor.zixcorp.com.
To read the 2019 Proxy Statement and view voting information, please
visit the Shareholder
Services section on the Zix investor relations Web site.

Please visit the Web site in advance to register, download and install
any necessary audio software. A recording of the webcast will also be
available on Zix’s investor relations Web site until June 5, 2020.

About Zix Corporation
Zix Corporation (Zix) is a leader
in email security. Trusted by the nation’s most influential institutions
in healthcare, finance and government, Zix delivers a superior
experience and easy-to-use solutions for email encryption and data loss
prevention, advanced threat protection, unified information archiving
and bring your own device (BYOD) mobile security. Focusing on the
protection of business communication, Zix enables its customers to
better secure data and meet compliance needs. Zix is publicly traded on
the Nasdaq Global Market under the symbol ZIXI. For more information,
visit www.zixcorp.com.

Contacts

Zix Company Contact
Geoff Bibby, 214-370-2241
[email protected]

Zix Investor Contact
Matt Glover and Najim Mostamand, CFA
Gateway
Investor Relations
(949) 574-3860
[email protected]