Additional logging that is implemented in Forefront Security for Exchange Server SP1 Update Rollup 3 may cause queues on Exchange servers

By default, additional logging is implemented in Microsoft Forefront Security for Exchange Server Service Pack 1 (SP1) Update Rollup 3. However, this new feature may cause queues to form in high mail flow environments in Exchange.

To resolve this issue, install Forefront Security for Exchange Server with Service Pack 2. 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.