Exchange Server 2010 SP1 Update Rollup 3 was originally released on March 9th but was then withdrawn by Microsoft a week later due to reports of duplicate message problems for Blackberry customers.

Now after a few weeks of testing and re-engineering Microsoft has re-released Update Rollup 3 as Version 2.

On March 14th we posted an announcement to the EHLO blog about removing Update Rollup 3 for Exchange Server 2010 SP1 due to an issue related to Blackberry devices.

The Exchange Servicing team has fixed the reported issue with E2010 SP1 RU3 and is making available a new version of RU3 for our customers, version, (KB2529939). We strongly advise all customers install this newly released version of Microsoft Exchange Server 2010 SP1 Update Rollup 3 and to discard any prior version of RU3 (KB2492690) which you may have.

For customers that had already deployed the original Update Rollup 3 and have not yet uninstalled it this new Version 2 of the update can be installed straight over the top. For the full deployment advice see the Microsoft Exchange team blog.

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


  1. Chris Brown

    I’m more than a little sceptical on this one…might leave it a few weeks before I roll it out.

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