Exchange User Mailboxes information is stored in .EDB files. EDB files store all Mailboxes information such as Contacts, Calendar, Appointments, Journals etc .If EDB file gets corrupted then, stored data becomes inaccessible. EDB file corruption may occur due to break down in exchange server connection or violation in exchange environment.
You may face the following problems due to EDB file corruption:
- Corrupted or damaged EDB headers
- Deleted user mailboxes
- Jet Engine Errors
- Exchange dirty shutdown state
- JET_errRecordNotFound, the key was not found”, "Jet_errRecordDeleted".Server Specific Error 4294966781 equates to JET_errInvalidLogSequence. The log files are out of sequence.
- Unable to initialize the Microsoft Exchange Information Store service.
- Exchange Server Error Code 528
- JET_errBadDbSignature -531
- JET_errConsitentTimeMismatch -551
- JET_errDatabaseStreamingFileMismatch -540
- JET_errDatabaseDirtyShutdown -550
- JET_errInvalidDatabase -1028
- JET_errInvalidDatabaseId -1010
- Exchange Server goes down
- “The System Cannot Find the Path Specified”
- “Error Opening Message Store”
- “The information store terminated abnormally”
- “Sever Specific Error 4294966278 (JET_errReadVerifyFailure)”
- “Corrupted header information”
- # 614. All future database updates will be rejected. Information Store (3420) Unable to rollback operation.
- #65678740 on database C:\EXCHSRVR\mdbdata\priv1.edb.
- # Duplicate Keys (Identifiers)
Well, no need to worry, this problem is not that much severe. You can overcome this problem with the help of Exchange Server database recovery software. You can convert EDB file to PST file and then import that PST file in MS Outlook. It is the most reliable and simpler solution for accessing corrupt EDB database.