The categorizer configuration cannot be read because the Active Directory directory service is unavailable.

Details
Product: Exchange
Event ID: 9205
Source: MSExchangeTransport
Version: 8.0
Symbolic Name: CategorizerConfigTransientFailure
Message: The categorizer configuration cannot be read because the Active Directory directory service is unavailable.
   
Explanation

This Warning event indicates the Microsoft Exchange Transport service couldn’t read the categorizer configuration because the Active Directory directory service is unavailable.

   
User Action

To resolve this warning, do one or more of the following:

  • Make sure that the Exchange server that logged this event can communicate with one or more Active Directory servers available in the organization.

  • Increase the diagnostic logging level on the Categorizer counter of the MSExchangeTransport performance object. You can increase logging by running the following Exchange Management Shell command:

    Set-EventLogLevel “MSExchangeTransport\Categorizer” -Level High

    For more information about how to increase logging, see Changing Process Logging Levels.

  • Review other related Error and Warning events in the Application log. These related events may help you find the root cause of this error.

    Important   After you have finished troubleshooting this issue, return logging to the default level by running the following command:

    Set-EventLogLevel “MSExchangeTransport\Categorizer” -Level Lowest

  • If the recommended steps do not resolve this error, contact Microsoft Customer Support Services. For more information about how to contact support, visit the Microsoft Help and Support Web site.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.

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