June 3rd

Zix Corporation Continues Industry Leadership With Record Breaking 11 Million ZixDirectory(TM) Members

Zix Corporation (ZixCorp(R)), (Nasdaq: ZIXI), the leader in hosted services for email encryption and e-prescribing, today announced that its ZixDirectory marked another industry first by reaching 11 million email encryption members. ZixDirectory is the largest email encryption directory in the world, interconnecting a network of communities that use ZixCorp\'s Email Encryption Service to send and receive secure email.

ZixDirectory connects all ZixCorp customers for seamless, transparent, and secure email. The ZixDirectory has now grown to include more than 1,000 hospitals, 30 Blues organizations, more than 600 financial institutions, the federal banking regulators, 19 state banking regulatory agencies and a growing number of federal, state and county governments. ZixCorp customers not only have the ability to communicate with anyone, they have instant secure communications with members of the ZixDirectory.

ZixCorp\'s Email Encryption Service lets organizations like The National Banks of Central Texas instantly plug into the ZixDirectory. As noted in a recent ZixCorp case study, The National Banks of Central Texas had a need to securely communicate with other members in their community of interest, specifically the federal regulators. That the Federal Financial Institutions Examination Council (FFIEC) agencies are ZixDirectory members was very significant to Barry Birchard, the banks\' Information Security Officer. \"We communicate regularly with the federal regulators and it\'s very convenient to be able to do so transparently and securely,\" he said. \"In fact, the other day, the Office of the Controller of Currency was in, conducting an IT audit. It made it a lot easier when they realized we were ZixCorp customers, too.\"

\"ZixDirectory is the core of our Email Encryption Service,\" said Nigel Johnson, vice president of business development and product management for ZixCorp. \"Our unique architecture excels at connecting entities within communities of interest, creating a powerful network for our users. Both our existing and prospective users benefit from the \'network effect,\' where the value of the ZixDirectory grows exponentially as we add new members.\"

About Zix Corporation

ZixCorp is the leading provider of easy-to-use-and-deploy email encryption and e-prescribing services that Connect entities with their customers and partners to Protect and Deliver sensitive information in the healthcare, finance, insurance and government industries. ZixCorp\'s hosted Email Encryption Service provides an easy and cost-effective way to ensure customer privacy and regulatory compliance for corporate email. Its PocketScript(R) e-prescribing service saves lives and saves money by automating the prescription process between payors, doctors and pharmacies. For more information, visit http://www.zixcorp.com.

SOURCE Zix Corporation