Exchange Server Error Code 1276
Specific Error Code 1276
Normally this error only occurs in Microsoft Exchange Server versions
5.5 and below. If your getting this error message and you are not trying
to install a new Exchange server, then most likely you are going to
need exchange server data recovery.
This error is seen as a Microsoft
NT(2000) event error code, as well as an Exchange Server Error when
trying to start the information store. This error occurs when the Exchange
Server database is corrupted.

