I am trying to migrate some mailbox from a database to another database owned by another exchange server.
I've been able to migrate all the emails except 2 of them.
I receive the following error:
MigrationMRSPermanentException: Error: Couldn't switch the mailbox into Sync Source mode. This could be because of one of the following reasons: Another administrator is currently moving the mailbox. The mailbox is locked. The Microsoft Exchange Mailbox Replication service (MRS) doesn't have the correct permissions. Network errors are preventing MRS from cleanly closing its session with the Mailbox server. If this is the case, MRS may continue to encounter this error for up to 2 hours - this duration is controlled by the TCP KeepAlive settings on the Mailbox server. Wait for the mailbox to be released before attempting to move this mailbox again. --> An error occurred while saving the changes on the folder "WwAAAAAbVfogqmYRzZvIAKoAL8RaCQBIAEVYQ0hBTkdFU1ZSMDMuZGMuZXhjZXRlcmFncm91cC5jb20A0Q1FenUbI0C/nZADs0oMUBhCYjabaONIoWjmAWLkUmr/". Error details: Failed, Property: [0x66180003] InTransitStatus, PropertyErrorCode: AccessDenied, PropertyErrorDescription: . --> Property: [0x66180003] InTransitStatus, PropertyErrorCode: AccessDenied, PropertyErrorDescription: .
Thsese mailbox are about 17Gb each. I am using the admin account to move the mailbox so I guess it is not a permission issue?
Any help would be very appreciated