XCON: Routing Calculation Complete and Registry Appears Corrupted (260060)


The information in this article applies to:

  • Microsoft Exchange Server 4.0
  • Microsoft Exchange Server 5.0
  • Microsoft Exchange Server 5.5
This article was previously published under Q260060
IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry

SYMPTOMS

When the Microsoft Exchange Server system attendant performs a routing calculation, the following event may be logged in the Microsoft Windows NT Event Viewer application event log:
Event ID: 5000
Type: Error
Source: MSExchangeSA
Description: Recalculation of the routing table is complete. Result: The
message transfer agent (MTA) information in the Windows NT registry appears to be corrupted.
Take steps to repair or restore the registry entries for the MTA.

CAUSE

This issue can occur if the message transfer agent (MTA) is missing a crucial registry entry that defines its own X.500 Distinguished Name (DN).

RESOLUTION

To resolve this issue:
  1. Add the missing registry entry:WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

    1. Start Registry Editor (Regedt32.exe).
    2. Locate the following key in the registry:

      HKEY_LOCAL_MACHINE/System/CurrentControlSet/Services/MSExchangeMTA/Parameters

    3. On the Edit menu, click Add Value, and then add the following registry value

      Value Name: X500 DN
      Data Type: REG_SZ:
      Value: /o=organization/ou=site/cn=Configuration/cn=Servers/cn=server_name/cn=Microsoft MTA

      In the Value data, organization is your correct organization name, site is your correct site name, and server_name is the correct name of the Exchange Server computer.
    4. Quit Registry Editor.
  2. Stop and start the Exchange Server MTA services.
  3. Recalculate your site routing:
    1. In the Exchange Server Administrator program, click to expand the Site object, click Configuration, and double-click the Site Addressing object to open its properties.
    2. Click the Routing tab, and then click Recalculate Routing. The following message is displayed:

      It will take several minutes for the new routing information to be replicated across your site and then take effect.

    3. Check the Event Viewer application event log and wait for the following event to be logged:

      Event ID: 5000
      Source: MSExchangeSA
      Type: Information
      Category: General
      Description: Recalculation of the routing table is Complete. Result: The
      operation has completed successfully.

Modification Type:MinorLast Reviewed:4/21/2005
Keywords:kbprb KB260060
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