Process %1 (PID=%2). The configuration domain controller specified in a call to SetConfigDCName (%3) was not found in the Sites container in the Active Directory. Exchange Active Directory Provider will select the configuration domain controller from the list of available domain controllers.

This Warning event indicates that Microsoft® Exchange Active Directory® Topology service did not find the mentioned domain controller in the Sites container in the Active Directory directory service. This situation can occur for the following reasons:

• The Active Directory Topology service cannot locate the domain that contains the DNS server.

• The Active Directory Topology service cannot find the DNS name.

• The Active Directory Topology service cannot find a writable Naming Context in Active Directory.

If other Exchange services start and run, this warning can be ignored. However, we recommended that this warning be fixed by following the steps listed in the User Action section.

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

• Make sure that the domain controller mentioned in the event description is correctly registered on the DNS server. For more information, see the following Microsoft Knowledge Base articles:

  • 247811, How Domain Controllers Are Located in Windows.

  • 291382, Frequently asked questions about Windows 2000 DNS and Windows Server 2003 DNS.

• In Active Directory Sites and Services, make sure that the domain controller mentioned in the event description is listed under the Sites container.

• Review the Application log and System log on the domain controller mentioned in the event description for any corresponding Warning or Error events.

Note  If you aren’t already doing so, consider running the tools that 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 mailflow, and better manage disaster-recovery scenarios. Go to the Toolbox node of Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.