E-mail messages are not sent when you are running Forefront Security for Exchange Server Service Pack 1

When you are running Microsoft Forefront Security for Exchange Server Service Pack 1 on a computer, you may experience the following symptoms:

• E-mail messages are not sent.
• The FSEMailPickup.exe process uses up to 2 gigabytes (GB) of virtual memory.
• The physical memory that is available decreases.

Note You can monitor memory usage in Windows Task Manager. If you stop the FSEMailPickup service in the Services snap-in, e-mail messages are sent, and virtual memory usage decreases.

To resolve this problem, you must install Hotfix Rollup 3 for Microsoft Forefront Security for Exchange Server Service Pack 1. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
Note Microsoft Forefront Security for Exchange Server Service Pack 1 must be installed before you install this hotfix rollup.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

To download Microsoft Forefront Security for Exchange Server Service Pack 1, visit the following Microsoft Download Center Web site: For more information about Forefront Security for Exchange Server, visit the following Microsoft Web site: