A directory error has occurred. Increase directory service logging levels and retry the operation. Error details will be found in the logged information. [valuevaluevaluevalue] (12)

Details
Product: Exchange
Event ID: 138
Source: MSExchangeMTA
Version: 6.5.0000.0
Message: A directory error has occurred. Increase directory service logging levels and retry the operation. Error details will be found in the logged information. [valuevaluevaluevalue] (12)
   
Explanation
By product design, the message transfer agent (MTA) relies on the directory service to initialize properly. In Exchange 2000, MTA relies on the Categorizer to interface with the Active Directory.
   
User Action
Check the Event Viewer for error and warning events related to the Active Directory. Use Network Monitor to capture network traces, then view these traces from Network Monitor for any network issue. Stop and restart the Routing Engine.

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