Microsoft recently released Exchange Server 2003 SP2 to the masses.
Following on from a public beta, SP2 enables devices with Windows Mobile 5 and the Messaging and Security Feature Pack for Windows Mobile 5.0 to accept push mail similar to Research In Motion's (RIM) Blackberry devices. SP2 uses an HTTP connection, maintained by the device, to push new e-mail messages, calendar, contact, and task notifications to the device.
SP2 also allows greater security for mobile devices. The introduction of policy settings for devices also administrators to:
Finally, SP2 includes better protection against spam. The updated and integrated Exchange Intelligent Message Filter provides a filter to ensure a continued focus on identifying spam and reducing false positives. Microsoft have also included new support for the Sender ID e-mail authentication protocol.
Download: Exchange Server 2003 SP2