Ceryx first in industry to offer 100 per cent uptime guarantee for Microsoft Exchange®

TORONTO, Nov. 17, 2004 - Messaging solutions provider Ceryx is now offering a 100 per cent e-mail uptime guarantee for its Hosted Exchange 2003 service. The promise is made possible because Ceryx is the first ASP in North America to include real-time replication with data rewind and e-mail continuity services with Microsoft's Hosted Exchange 2003.

"For most businesses, e-mail is a mission-critical application, but too often e-mail systems fail," explained Gus Harsfai, President and CEO of Ceryx. "Whether it's due to a disaster, failed upgrade, hardware failure, data corruption, or virus activity, an average e-mail outage lasts longer than eight hours when recovery from tape backup is required."

"This is not acceptable, 99.9 per cent uptime is not even possible if you rely solely on tape backup; we believe businesses should not have to endure any e-mail downtime," Harsfai continued.

Ceryx will achieve 100 per cent uptime through a unique combination of technology, architecture and service. Ceryx's Hosted Exchange is replicated in real-time between two fully-redundant Tier 4 data centres and includes their proprietary e-mail firewall protection.

One of the key differentiators of Ceryx's Hosted Exchange service is Exchange Data Rewind™ (EDR). This technology enables rapid recovery from Exchange system failures that conventionally require hours of recovery effort and cause lost productivity during an outage. In the event of a system problem, EDR rewinds data to a point just prior to the outage allowing Ceryx administrators to inoculate the system against the outage and ensuring e-mail users have uninterrupted service.

ABOUT CERYX
Ceryx helps businesses achieve email reliability by bringing together operational experience, advanced infrastructure, and proprietary research and product development with leading messaging and collaboration solutions. With operations in Toronto and New York, as well as Tier 4 redundant data centres in both cities, Ceryx's team of senior messaging professionals have met Fortune 500 companies' messaging needs across North America for more than 17 years. Ceryx offers clients a suite of messaging services that include hosted and managed email systems, and email security. Visit www.ceryx.com for more information.

For more information, please contact:
Aine Magennis
Sequentia Communications
aine@sequentia.net
(416) 203-3656 ext. 224

Bill Di Nardo
Ceryx Inc.
(416) 482-9659 ext. 107
bill.dinardo@ceryx.com

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