Topic Last Modified: 2010-05-03

The Microsoft Exchange Server 2010 Management Pack for System Center Operations Manager monitors the Windows Application log on computers running Exchange 2010 and generates this alert when the events specified in the following Details table are logged.

To learn more about this alert, in Operations Manager, do one or more of the following:


Product Name


Product Version

14.0 (Exchange 2010)

Event ID


Event Source


Alert Type


Rule Path

Microsoft Exchange Server/Exchange 2010/Mailbox/System Attendant

Rule Name

Could not read the forest GUID. The Proxy address calculation services will not be available on the local Exchange server.


This Error event indicates that Exchange server cannot read the GUID of the configuration naming context in Active Directory domain %1. As a result, Exchange server %2 will not be able to generate proxy addresses. This error is an indication of a much larger problem. Default permissions on the configuration naming context in Active Directory may be too restrictive.  

User Action

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

  • Review the System and Application event logs for related events. For example, events that occur immediately before and after this event may provide more information about the root cause of this error.

  • Verify that the Authenticated Users group has been assigned the List Contents and Read Properties permissions on the configuration naming context in Active Directory.

  • Run the Exchange tools that can help you analyze and troubleshoot your organization. To run these tools, ppen the Toolbox node of the Exchange Management Console.

If you cannot resolve this error, or you experience other problems or mail flow interruptions in your Exchange environment after attempting to resolve this error, contact Microsoft Product Support. For information about contacting support, visit the Contact Us page of the Microsoft Help and Support Web site.

For More Information

If you are not already doing so, consider running the Exchange tools created to help you analyze and troubleshoot your Exchange environment. These tools can help make sure that your configuration aligns with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. To run these tools, go to the Toolbox node of the Exchange Management Console. To learn more about these tools, see Managing Tools in the Toolbox.