The topology doesn’t contain a route to Exchange 2000 Server or Exchange Server 2003 server %1 in Routing Group %2 in routing tables with the timestamp %3.

Details
Product: Exchange
Event ID: 5020
Source: MSExchangeTransport
Version: 8.0
Symbolic Name: RoutingNoRouteToLegacyServer
Message: The topology doesn’t contain a route to Exchange 2000 Server or Exchange Server 2003 server %1 in Routing Group %2 in routing tables with the timestamp %3.
   
Explanation

This Warning event indicates that the specified routing table does not have route information to the routing group where the specified server resides. Therefore, routing is unable to route messages to any servers in this routing group. This error can occur in the following situations:

  • Microsoft Exchange 2000 Server or Exchange Server 2003 routing groups are removed and routing group connectors are removed, leaving an Exchange 2000 or Exchange 2003 routing group disconnected from the rest of the organization.

  • A routing group connector was not created between the Exchange Server 2007 routing group and an Exchange 2000 or Exchange 2003 routing group during setup of the first Hub Transport server.

  • A routing group connector is misconfigured.

  • Because of Active Directory replication latency, the route information is not yet available to the server that registered this event.

For more information, see Message Routing in a Coexistence Environment.

   
User Action

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

  • Verify that the indicated routing group has at least one routing group connector to another valid routing group.

  • Verify that a routing group connector exists between the Exchange Routing Group (DWBGZMFD01QNBJR) and at least one Exchange 2000 or Exchange 2003 routing group.

  • Verify the routing group connector configuration.

  • If your configuration is correct, this event may be caused by replication latency. You can take no action and the routing tables will be updated when configuration changes are received. 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.

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