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Intelligent Message Filter is not enabled on the server

[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 http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2005-11-18

The Microsoft® Exchange Server Analyzer Tool reads the following registry entry to determine whether Microsoft Exchange Intelligent Message Filter is installed and enabled on the server:

HKEY_LOCAL_MACHINE\ Software\Microsoft\Exchange\ContentFilter

If the Exchange Server Analyzer finds that the ContentFilterBindings value entry in the ContentFilter registry key is present, but the ContentFilterBindings value is not configured, the Exchange Server Analyzer displays a warning message.

noteNote:
The presence of the ContentFilterBindings value entry in the ContentFilter registry key when the ContentFilterBindings value is not configured indicates that Intelligent Message Filter is not enabled on the server.
importantImportant:
This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore the registry if a problem occurs. For information about how to restore the registry, view the "Restore the Registry" Help topic in Regedit.exe or Regedt32.exe.

Microsoft Exchange Intelligent Message Filter identifies messages that are likely to be unsolicited commercial e-mail (UCE). After you deploy Intelligent Message Filter on your Exchange gateway servers or Exchange bridgehead servers that accept incoming e-mail, you must enable Intelligent Message Filter on each SMTP virtual server that accepts Internet e-mail messages.

To view the ContentFilter registry key
  1. In Registry Editor (regedit), in the details pane, right-click ContentFilter to view the setting for ContentFilterBindings.

    noteNote:
    If you have not configured Exchange Intelligent Message Filter on your SMTP virtual server, the ContentFilterBindings value will be null.

    Before you edit the registry, and for information about how to edit the registry, see Microsoft Knowledge Base article 256986, "Description of the Microsoft Windows registry" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=256986).

It is recommended that Exchange Intelligent Message Filter be enabled on all Exchange Servers that have Intelligent Message Filter installed. To enable Intelligent Message Filter on your SMTP virtual server, perform the following procedure. After enabling Intelligent Message Filter, you can verify the value of ContentFilter registry key in the registry.

To enable Intelligent Message Filter
  1. Click Start, point to All Programs, point to Microsoft Exchange, and then click System Manager.

  2. In Exchange System Manager, expand Servers, expand Server name, expand Protocols, expand SMTP, right-click Intelligent Message Filtering, and then click Properties.

  3. On the General tab, under Apply intelligent message filtering to the following virtual servers' IP addresses, click the check box next to each SMTP virtual server on which you want to enable Intelligent Message Filter.

    99c29da7-82ec-403b-bf4d-aecd240ed756

For information, see the Exchange Intelligent Message Filter Web site (http://go.microsoft.com/fwlink/?LinkId=21607).

 
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