Tuesday, April 26, 2011

Error Mounting–Newly Created Mailbox Database in Exchange 2010 SP1

When you create a new database in a new Exchange 2010 environment following error occurs when trying to mount it.

Event ID – 15, Source – MSExchangeRepl

Active Manager failed to mount database DB2 on server servername.domain.org. Error: An Active Manager operation failed. Error: The database action failed. Error: Operation failed with message: MapiExceptionNotFound: Unable to mount database. (hr=0x8004010f, ec=-2147221233)


Make sure that the database points to the correct Public Folder Database and has the Offline Address Book selected. After you have do the above, the database will mount correctly.


  1. Perfect. Thank you

  2. Here is a KB article, describing this issue: http://support.microsoft.com/kb/977960

    Sometimes, such kind of problem is also occurred due to the corrupted items in Exchange databases and due to which you can not mount to the MS Exchange Server without repairing it. To fix the corruption, you may use ESEUTIL /p repair tool or an easy to use third party Exchange recovery software to fix and mount the database items to MS Exchange Server.


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