Today, I was working with one of our clients , he simply wants to create a mailbox database in which he will create a mailbox that will be used for messages journal When he tried to mount the newly created database it failed with following error message ( event 3154 ) at event viewer application’s logs :
“Active Manager failed to mount database Journaling-2010 on server servername.domain.local. 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)”
The issue was that the newly created mailbox database was not assigned the default public folder database & offline address book !!Once they were assigned the database mounted successfully.