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ZixIt Announces Agreement With Yahoo!

DALLAS--(BUSINESS WIRE)--Aug. 18, 2000--ZixIt Corporation (Nasdaq:ZIXI) announced today that it has signed an agreement with Yahoo! Inc. (Nasdaq:YHOO) to provide Yahoo!(R) Mail (http://mail.yahoo.com) users with the option to send encrypted e-mail messages through ZixIt's SecureDelivery.com messaging portal.

Terms of the agreement and service start date were not disclosed.

ZixIt Corporation provides products and services that enhance security, privacy, and convenience for users of the Internet. Principal services include: SecureDelivery.com(TM) -- an Internet secure-messaging portal, and ZixMail(TM) -- a secure document delivery, private email, and message tracking service that enables users worldwide to easily send and receive encrypted and digitally signed communications using their existing email systems and addresses. For further information, visit www.zixit.com or contact investor relations at 214/515-7357.

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CONTACT: Zixit Corporation
Investor Contact:
Beverly V. Fuortes, 214/515-7357
invest@zixit.com
or
Press Contact:
Cindy Lawrence, 212/419-8343
cindy.lawrence@citigatedr-ny.com