I have an Exchange Server 2007 that suffered a hard shutdown. When I brought it back up I'm getting a "Failed to mount database 'Mailbox Database'" error. Specifically:
"Exchange is unable to mount the database that you specified. Specified database: \First Storage Group\Mailbox Database; Error code: MapiExceptioinCallFailed: unable to mount database. (hr=0x80004005, ec=-501)
If I do a search on the error code 80004005 I'm told to check the rights of the database subdirectory. They are as they should be according to Microsoft. If I add the ec=-501 I don't get any results at all. Using the Database Troubleshooter tool it indicates that Exchange has problems with the domain server. I haven't really explored that option to this point because it seems unlikely. I've run the Database Repair tool and it doesn't come back and report any errors but I still can't mount the database.
Any thoughts or help would be greatly appreciated.