E-mail messages start to build into a queue, and the Fsctransportscanner.exe process uses a large amount of memory when Forefront Security for Exchange Server is running

When Microsoft Forefront Security for Exchange Server (FSE) Service Pack 1 (SP1) is running on a computer, you may experience the following problems:

• E-mail messages start to build into a queue.
• The Fsctransportscanner.exe process uses lots of memory. For example, the Fsctransportscanner.exe process may use as much as 700 megabytes (MB) of memory.

Note You can monitor system memory usage in Task Manager.

To resolve this problem, install Hotfix Rollup 3 for Microsoft Forefront Security for Exchange Server Service Pack 1 (SP1).

Note Microsoft Forefront Security for Exchange Server SP1 must be installed before you install Hotfix Rollup 3 for Microsoft Forefront Security for Exchange Server SP1.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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 SP1, visit the following Microsoft Download Center Web site: For more information about Forefront Security for Exchange Server, visit the following Microsoft Web site: