Download Update Rollup 2 for Exchange Server 2010 Service Pack 1
Microsoft has released Update Rollup 2 for Microsoft Exchange Server 2010 Service Pack 1 (SP1).
We can refer to the article Description of Update Rollup 2 for Exchange Server 2010 Service Pack 1 to know the issues that the update rollup fixes. and download it from Download the Exchange2010-KB2425179-EN-x64 package now. Please do go though the Update rollup information section of KB2425179 to avoid know issues.