Zix Corporation Selected by Houston Healthcare for Email Encryption Service

Georgia-based health system to deploy ZixCorp's email encryption services

DALLAS, April 7 /PRNewswire-FirstCall/ -- Zix Corporation (ZixCorp(R)),
(Nasdaq: ZIXI), the leader in email encryption services, today announced that
Houston Healthcare, a Georgia-based health system, has signed a three-year
contract for the company's email encryption services.

ZixCorp will enforce Houston Healthcare's email encryption policies to ensure
the secure handling of confidential information. The service includes a
pre-configured lexicon that automatically detects and encrypts protected
health information ("PHI"). ZixCorp will also provide branding and encrypted
messaging functionality to the organization's website.

"ZixCorp's services are the proven choice for the healthcare industry," said
Rob Rhodes, chief information officer for Houston Healthcare. "After
reviewing ZixCorp's customer base and excellent recommendations from
references and consultants, we're confident our choice was the right one."

"ZixCorp's email encryption services continue to be the first choice in the
healthcare community because of the ZixDirectory and our ability to deliver
key management in the cloud," said Rick Spurr, chief executive officer for
ZixCorp. "As the only significant hosted service for email encryption, we can
uniquely provide immediate access to a large community of users in a highly
scalable and easy-to-deploy manner."

ZixCorp offers the simplicity of Software as a Service ("SaaS") with the
convenience of customizable encryption policies. ZixCorp operates the largest
email encryption directory in the world enabling seamless and secure
communication among communities of interest. ZixCorp's directory connects
over 15 million members and includes 20 state banking regulators, over 800
financial institutions, over 1000 hospitals and over 30 Blue Cross Blue
Shield organizations.

About Houston Healthcare
Houston Healthcare is proud to serve the medical needs of residents in Houston
County, Georgia and the surrounding communities as the county's largest
healthcare provider for almost 50 years. The system includes Houston Medical
Center, a 198-bed facility in Warner Robins; Perry Hospital, a 45-bed
facility; Houston Heart Institute; The Surgery Center; Houston Occupational
Health & Wellness Center; Houston Health Pavilion; three urgent care centers
and multiple outpatient services.

About Zix Corporation
Zix Corporation (ZixCorp(R)) is the leading provider of hosted email
encryption and e-prescribing services. ZixCorp's email encryption services
provide an easy and cost-effective way to ensure customer privacy and
regulatory compliance for corporate email. Its PocketScript(R) e-prescribing
service reduces costs and improves patient care by automating the prescription
process between payers, doctors, and pharmacies. For more information, visit
www.zixcorp.com.

SOURCE Zix Corporation

Public Relations, Geoff Bibby, +1-214-370-2241, publicrelations@zixcorp.com,
or Investor Relations, Peter Wilensky, +1-214-515-7357, invest@zixcorp.com,
both of Zix Corporation