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Zix Corporation Releases Message Inspector Version 4.3; Latest version includes new signature database and greater functionality

DALLAS--(BUSINESS WIRE)--Feb. 24, 2004--Zix Corporation (ZixCorp(TM)), (Nasdaq:ZIXI), a global provider of protection, management, and delivery solutions for electronic communications, today announced the availability of Message Inspector 4.3, the latest version of its spam and email filtering solution. This newest release adds more choices for users and new capabilities to significantly reduce false-positive rates of spam detection and addresses one of the newest spam-based scams, phishing.

Message Inspector is a multi-level email management tool that combines the most advanced spam and content filtering technologies with enhanced administration tools, resulting in a comprehensive, accurate, and easy-to-manage solution that fully addresses the content filtering needs of organizations. The product helps manage, filter, and if necessary, block unauthorized inbound, outbound, and interoffice communication.

"We chose Message Inspector based on a recommendation from another company and have seen very good results virtually eliminating all spam with version 4.3," said Tony Gialloreto, information technology manager for Allegheny County Airport Authority in Pittsburgh, Pa. "The signature updates are working really well at keeping a very low false-positive rate and requiring little to no administration."

New features in Message Inspector 4.3 include:

  • A comprehensive signature database that contains tens of thousands of signatures supporting multiple languages, which are reviewed and updated on a daily basis. The database is especially effective in the detection of HTML-based spam, a common method used by spammers to circumvent standard anti-spam software.
  • Automatic white lists. Message Inspector 4.3 can be configured to automatically accept email from all recipients of outgoing messages sent by the user. This "never spam" list reduces false-positive rates and helps increase user satisfaction.
  • Dual virus-scanning platforms offer users the choice of utilizing either -- or both -- leading anti-virus programs.
  • Anti-phishing capabilities. Message Inspector 4.3's comprehensive database of signatures contains a subset of signatures that can detect phishing email attacks.

"While spam continues to be a significant problem for businesses, email fraud, identity theft, and 'phishing' have emerged as other significant threats. Companies that provide anti-spam solutions which use a multi-layered approach provide the best protection against these business threats," said Matt Cain, senior vice president for the META Group. "A layered approach that is supplemented by a regularly updated spam signature database helps provide a low false-positive rate."

Message Inspector will continue to provide advanced content filtering capabilities, sophisticated linguistics, and strong administration tools including: a full quarantine management system; LDAP support; and distributed deployment.

"ZixCorp is excited about this latest release of Message Inspector," said Dennis Heathcote, vice president of sales and marketing for ZixCorp. "Everyone involved has worked to ensure that we are delivering the best anti-spam product available. Beta testing was completed within ZixCorp and by a number of our customers. In fact, one of the country's leading health benefits companies found that Message Inspector is successfully blocking spam that accounts for 70 percent of its two million weekly messages. Users who were receiving up to 400 spam messages a day are now receiving zero, significantly improving productivity. That kind of success has helped the company not only protect its employees, but regain wasted network bandwidth."

ZixCorp will host a Web seminar on March 10 entitled "Beyond Anti-Spam: The Future of Email Content Filtering Solutions" that will highlight the new features of Message Inspector. For more information and to register for this event, visit

About Zix Corporation

Zix Corporation (ZixCorp(TM)) is a global provider of e-messaging protection and transaction services. ZixCorp offers a range of solutions to protect organizations from viruses, spam, and electronic attack, as well as enabling secure electronic communications, such as email encryption and e-prescribing. ZixCorp helps organizations of any size to streamline operations, mitigate risks, and leverage the efficiencies of e-messaging. For more information, visit

CONTACT: ZixCorp Contacts
Amy Liakos, 214-515-7338 (Media)
Brad Almond, 214-515-7357 (Investor)

SOURCE: Zix Corporation