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St. Louis County Expands Email Encryption Service from Zix Corporation

ZixConnect(TM) Allows Minnesota County to Send and Receive Secure Emails with Key Business Partners

DALLAS--(BUSINESS WIRE)--June 7, 2007--Zix Corporation (ZixCorp(R)), (Nasdaq:ZIXI), the leader in hosted services for email encryption and e-prescribing, today announced that St. Louis County has selected the Company's latest encryption offering, ZixConnect(TM), a managed Transport Layer Security protocol (TLS) service designed for secure business communications.

St. Louis County uses ZixCorp's Email Encryption Service and added on the additional ZixConnect service to communicate directly with the State of Minnesota. ZixCorp has many local, state and national government agencies that safeguard email communications with its policy-based service. The Company's government customers include county governments such as St. Louis County, various state health regulators, 13 state banking regulators and several federal banking regulatory agencies.

"ZixCorp's success and expertise in the government sector make it an easy encryption choice for government organizations such as St. Louis County. We found that many organizations have a need to secure their email communication, but they didn't want to manage TLS connections or host an appliance onsite. ZixCorp designed a service that offers a single TLS connection linked to our SysTrust certified data center that can be used to communicate with multiple business partners," said Rick Spurr, chief executive officer for ZixCorp. "For ZixConnect, we handle all of the setup and maintenance of establishing the TLS connection and then our customers can send secure emails. It's that simple."

As the leading email encryption provider with over 8 million protected email recipients, ZixCorp's vast directory allows seamless encrypted email delivery to healthcare organizations, insurers, financial institutions and regulators, including the federal banking regulatory agencies. ZixCorp supports five encrypted email delivery mechanisms, including S/MIME, TLS, OpenPGP, secure portal and "push" delivery.

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

Public Relations:
Farrah Corley, 214-370-2175
Investor Relations:
Peter Wilensky, 214-515-7357

SOURCE: Zix Corporation