Microsoft has announced the release of Update Rollup 4 for Exchange Server 2007 SP3.

This update contains a number of customer-reported and internally found issues since the release of RU3. For a list of changes included in this rollup, see KBA 2509911 Description of Update Rollup 4 for Exchange Server 2007 Service Pack 3. We’d like to specifically call out the following fixes which are included in this release:

  • 2531208 You cannot synchronize a folder hierarchy by using Outlook for Mac 2011 in an Exchange Server 2007 SP3 environment
  • 2528437 EWS applications cannot connect to Exchange Server 2007 servers after you make changes on accepted domains
  • 2521063 You are incorrectly displayed as a meeting organizer after you synchronize the meeting by using your mobile device in an Exchange Server 2007 environment

Update Rollup 5 for Exchange Server 2007 Service Pack 3 is currently scheduled to release in August 2011.

You can download the update from Microsoft here.

This release comes a week after the release of UR4 for Exchange Server 2010 SP1, which surfaced an apparent Outlook bug that can lead to data loss when moving mailbox or public folder data.

I decided to test this latest Exchange 2007 update to see if it resulted in the same problems. From my initial testing the same problem with Outlook and Exchange 2010 SP1 UR4 servers does not appear to be present, however customers may wish to proceed with caution or even wait to see if others report issues before applying in their own environment.


About the Author

Paul Cunningham

Paul is a former Microsoft MVP for Office Apps and Services. He works as a consultant, writer, and trainer specializing in Office 365 and Exchange Server. Paul no longer writes for


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