An internal MTA error occurred. Destination index {index name} on the message is not valid. Entity name: {object name}. [{value}{value}{value}{value}] (14)

Details
Product: Exchange
Event ID: 3135
Source: MSExchangeMTA
Version: 6.0
Component: Message Transfer Agent
Symbolic Name: MTA03135
Message: An internal MTA error occurred. Destination index {index name} on the message is not valid. Entity name: {object name}. [{value}{value}{value}{value}] (14)
   
Explanation
The message transfer agent (MTA) database may be corrupted.
   
User Action
Stop and restart the MTA service. If the error persists, run the Mtacheck.exe utility. Stop the MTA service, open a command prompt, and type Mtacheck/v /f c:\mta.txt. If Mtacheck removes objects from a database queue, it places each damaged object in a Db*.dat file in \Exchsrvr\Mtadata\Mtacheck.out. Check your drives and verify that core *.dat files are in the \Exchsrvr\Mtadata directories. The \Exchsrvr\Mtadata directory with *.dat files may be on more than one drive. Contact Microsoft Product Support Services for assistance.

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