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Content filtering actions are reset when you install the Hub Transport server role

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at]  

Topic Last Modified: 2010-04-01

The Microsoft Exchange Best Practices Analyzer examines the spam confidence level (SCL) settings that are enabled on servers that are running Microsoft Exchange Server 2007 Hub Transport server roles. If the Reject messages that have an SCL rating greater than or equal to check box is not selected on one or more servers, Exchange Best Practices Analyzer generates a warning message.

This check box is located on the Action tab under Organization Configuration\Hub Transport\Anti-Spam\Content Filtering.

By default, this check box is selected when you install the Hub Transport server role.

If you click to clear the Reject messages that have an SCL rating greater than or equal to check box to disable the SCL Reject option, the Exchange 2007 Setup program automatically re-enables the SCL Reject option when you install another Hub Transport server in the organization.

To address this issue, manually disable the SCL Reject option after you install the Hub Transport server role in the organization.

To turn off the SCL Reject option
  1. Start the Exchange Management Shell.

  2. Run the following cmdlet:

    Set-ContentFilterConfig -SCLRejectEnabled:$false

For more information, see Microsoft Knowledge Base article 2000114, "Xcon: SCLRejectEnabled Setting reset when new Hub is installed" (


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