Microsoft's 'Titanium' has been released for beta testing under the name Exchange Server 2003.
According to the company website the test code for Exchange 2003, which is on schedule for release in the middle of this year, can be downloaded for evaluation as part of the Exchange Joint Development Program.
Exchange Server 2003 uses messaging collaboration between servers running on Windows .Net Server 2003 and Windows 2000 Server SP3 or later.
Exchange and Outlook 11 are likely to be formally released in mid-2003, following the scheduled spring release of Windows .Net Server 2003.
According to Microsoft the new Exchange is an incremental upgrade to Exchange 2000 Server and has a greater emphasis on security.
The company said: "This enhanced security frees administrators from having to worry about locking down their systems, enabling them to install and run only those features that they require for their environments."
It features new spam protection, support for connection filtering based on real-time black hole lists and dial-up user lists, inbound recipient filtering and Spam Beacon Blocking.
Microsoft says the product has a better virus scanning application program interface, which allows third-party antivirus vendor products to run on Exchange servers without Exchange mailboxes.
"This will enable the scanning of incoming messages for potentially harmful code as soon as they enter a customer's environment, and will reduce the operational impact on Exchange mailbox servers," the company said.
The new version of Exchange also includes support for wireless access and mobile devices.
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