Event ID - 2174

Event Id2174
DescriptionAn MTA database server error was encountered while updating an attribute. Called from <directory name>. Procedure: <name>. Database error code: <error code>. Object at fault: <object name>. Attribute identifier: <id>. Value number: <value>. Referenced object: <object name> (00000000 => N/A). Referenced object error <error code>. [<value> <value> <value> <value>] (14)
Event InformationAn internal software error occurred.

According to Microsoft:
A supported hotfix is now available from Microsoft, but it is only intended to correct the problemis. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Exchange 2000 Server service pack that contains this hotfix.
Reference LinksMultiple MTA event IDs 2174, 2124, and 2143 are logged by Exchange 2003 Server

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