Exchange: How to Apply Service Packs and Rollups to a Computer Running FSE

Follow the instructions provided with the specific Exchange service pack or roll-up that you are installing, and install the service pack.

Documentation for specific Exchange updates includes 

• Install the Latest Update Rollup for Exchange 2010 and
• How to Install the Latest Service Pack or Update Rollup for Exchange 2007. 

Note: Some Exchange service packs and rollups require you to download and install an FSE update in order to ensure that FSE operates correctly.

Verify that mail is flowing.