The routing group for Exchange server %1 was not determined in routing tables with timestamp %2. Recipients will not be routed to this server.

This Error event indicates that the routing group membership for the specified Microsoft Exchange server could not be determined based on the information in the specified routing table. Messages will not be routed to the specified server.

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

• Verify the routing group configuration and make sure that the specified server is a member of a valid routing group. All Exchange Server 2007 servers automatically belong to Exchange Routing Group (DWBGZMFD01QNBJR). Exchange 2007 and Exchange 2000 Server or Exchange Server 2003 servers cannot be located in the same routing group. If your configuration is correct, this error may be caused by Active Directory directory service replication latency. For more information, see Message Routing in a Coexistence Environment.

• Take no action. Messages will automatically be rerouted when the routing configuration updates.

• If you have been granted the correct permissions, you can force Active Directory replication to immediately occur.

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

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

• 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.