A fatal MTA database server error was encountered. Incorrect attributes were used in an API call. Called from {directory name}, Procedure {name}. Object ID: {id}. Attribute ID: {id}. Referenced attribute ID: {id}. [{value}{value}{value}{value}] (16)

Details
Product: Exchange
Event ID: 2157
Source: MSExchangeMTA
Version: 6.0
Component: Message Transfer Agent
Symbolic Name: MTA02157
Message: A fatal MTA database server error was encountered. Incorrect attributes were used in an API call. Called from {directory name}, Procedure {name}. Object ID: {id}. Attribute ID: {id}. Referenced attribute ID: {id}. [{value}{value}{value}{value}] (16)
   
Explanation
The message transfer agent (MTA) either encountered an invalid object and cannot process it, or it has database corruption.
   
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. Contact Microsoft Product Support Services for assistance.

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