Today the Exchange Team also released Rollup 5 for Exchange Server 2010 Service Pack 3 (KB2917508). This update raises Exchange 2010 version number to 14.3.181.6.

This Rollup also adds support for using Windows Server 2012 R12 domain controllers in your Exchange 2010 SP3 RU5 environment as well as support for running Windows Server 2012 R2 forest and domain functional levels.

This Rollup includes the following fixes:

• 2887459 Public folder expiry time is set incorrectly in Exchange Server 2010 SP3
• 2892257 Email items are lost when you move items between shared folders by using EWS delegate access
• 2897935 “Cannot save the object ‘\FolderName'” error message when you try to replicate Exchange Server 2010 public folders
• 2898908 EdgeTransport.exe crashes if the From field is empty in an email message
• 2903831 Only a single character is allowed in the disclaimer content in ECP
• 2904459 RPC Client Access service crashes if you add “Signed By” or “Send From” column in Outlook online mode
• 2913413 RPC Client Access service crashes with an exception in Exchange Server 2010
• 2913999 Meeting request body and instructions are lost in delegate’s auto-forwarded meeting request
• 2916836 EdgeTransport.exe crashes when a transport rule sends a rejection message to an empty address
• 2919513 Memory leak or memory corruption occurs in Exchange Server 2010
• 2924971 RPC Client Access service stops when you select an inactive search folder in Outlook 2007 in an Exchange Server 2010 SP3 environment
• 2926057 EdgeTransport.exe crashes if seek operation failed in Exchange Server 2010
• 2927856 Incorrect recurring meeting if disclaimer transport rule is enabled in Exchange Server 2010

Notes:

• As of Service Pack 2 Rollup 4, its no longer required to disable/re-enable ForeFront Protection for Exchange using the fscutility to be able to install the Rollup properly. However, if you want to remain in control, you can disable ForeFront before installing the Rollup using fscutility /disable and re-enable it afterwards using fscutility /enable.
• If you want to speed up the update process for systems without internet access, you can follow the procedure described here to disable publisher’s certificate revocation checking.
• If you got a DAG and want to properly update the DAG members, check the instructions here.
• Rollups are cumulative, i.e. they contain fixes released in earlier update Rollups for the same product level (RTM, SP). This means you don’t need to install previous Rollups during a fresh installation but can start with the latest Rollup package.

As with any Hotfix, Rollup or Service Pack, I’d recommend to thoroughly test this rollup in a test and acceptance environment first, prior to implementing it in production.

You can download Exchange 2010 SP3 Rollup 5 here.