Exchange 2007 SP1 has shipped

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Service Pack 1 for Exchange 2007 has now been released. Over 250,000 customers were involved in testing the SP, 30,000 of whom were running Windows Server 2008.

 

As well as a rollup of relevant hotfixes, key improvements in Exchange Server 2007 SP1 include:
Better "Anywhere Access"
Integrated Exchange Unified Messaging functionality with Microsoft Office Communicator 2007 and Microsoft Office Communications Server 2007.
Outlook Web Access additions, including public folder access, S/MIME support, personal distribution lists, and mailbox rules editor.
Webready document viewer supports Microsoft Office 2007 documents in addition to Microsoft Office 2003 documents.
Extended language support in Outlook Web Access with Arabic and Korean spell checking.

Improved Operational Efficiency
Support for Windows Server 2008 deployments, including benefits in flexible clustering, advanced networking, and simplified management.
Additional tools in the Exchange Management Console, including public folder management and configuration options for clustering and POP/IMAP access.
Improvements to the Exchange Management Shell syntax and import-export PST in the move-mailbox command.
Wider variety of web services for application development, including public folder access, delegate management, and folder level permissions.

Increased Built-in Protection
Addition of Standby Continuous Replication (SCR) for site resilient high availability deployments.
Extended Exchange ActiveSync policies for mobile policy enforcement.
Information rights management pre-licensing by the Hub Transport role.
Secure Real Time Protocol (SRTP) support in the Unified Messaging role.
Support for IPv6 when using Windows Server 2008.

 

You can download the service pack and associated documentation here. If you're after deep deep detail on the internals of SP1, check out the Exchange team blog.