Topic Last Modified: 2006-05-17

The Microsoft® Exchange Server Analyzer Tool queries the Active Directory® directory service to determine whether the msExchServerBindingsFiltering property of a Simple Mail Transfer Protocol (SMTP) virtual server object indicates that sender ID filtering is enabled for an SMTP virtual server instance.

The Exchange Server Analyzer also queries Active Directory to determine whether the wWWHomePage attribute of the UCE Content Filter object contains entries for sender ID and connection filtering.

The Exchange Server Analyzer displays a warning if the following conditions are true:

This warning indicates that sender ID filtering is effectively enabled. Sender ID filtering is generally not an issue unless you are troubleshooting mail flow problems involving this particular server. If this is the case, you may want to verify the filter configuration or temporarily disable sender ID filtering to determine whether it is incorrectly blocking mail from valid senders.

To disable a sender ID filter on an SMTP virtual server
  1. Start Exchange System Manager: Click Start, point to All Programs, point to Microsoft Exchange, and then click System Manager.

  2. In the console tree, expand Servers, expand the server that you want, expand Protocols, and then expand SMTP.

  3. Right-click the SMTP virtual server on which you want to disable the filter, and then click Properties.

  4. In <SMTP Virtual Server> Properties, on the General tab, click Advanced.

  5. In Advanced, select the IP address for which you want to disable the filter, and then click Edit.

  6. In Identification, clear the Apply Sender Filter check box to disable the filter.

  7. If you have multiple virtual servers, repeat Steps 3 through 6 for each virtual server on which you want to disable the filter.

For more information about intelligent message filtering, see the Exchange Intelligent Message Filter Web site (