This Error event indicates that the Microsoft Exchange Transport service couldn't create the routing table log directory or a log file in the routing table log directory.

Routing table logging periodically records a snapshot of the routing table that is used by the Microsoft Exchange Server 2010 Hub Transport server or Edge Transport server to route messages to their destinations.

The location of the routing table logs is controlled by the RoutingTableLogPath parameter on the Set-TransportServer cmdlet in the Exchange Management Shell. By default, the routing table logs are stored in the C:\Program Files\Microsoft\Exchange Server\V14\TransportRoles\Logs\Routing directory. The directory must be local to the Exchange 2010 computer. When you change the location of the routing table log directory, you must restart the Microsoft Exchange Transport service for the change to take effect.

By default, the Microsoft Exchange Transport service uses the security credentials of the Network Service user account to create the new routing table log directory and apply the correct permissions as follows:

• If the new routing table log directory does not already exist, and the Network Service account has the rights that are required to create folders and apply permissions at the new location, the new routing table log directory is created and the correct permissions are applied to the new directory. The correct permissions for the routing table log directory are as follows:
  
  
  • Administrator: Full Control
    
    
  • System: Full Control
    
    
  • Network Service: Read, Write, and Delete Subfolders and Files
    
    
• If the new routing table log directory already exists, the existing folder permissions are not checked.
  
  

To resolve this error, verify that the location that is specified by the RoutingTableLogPath parameter on the Get-TransportServer cmdlet has the correct permissions assigned to it.

For more information, see the following topics:

• Configure Routing Table Logging
  
  
• Set-TransportServer
  
  

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.