Restore job for a Exchange 2010 Mailbox fails with error “0xe00002f8 - Cannot open one or more mail messages because of unknown MAPI errors” when the option “Recreate user accounts and mailboxes if they do not already exist on the destination server” is selected in the restore job and the user account and its mailbox is deleted and purged from Exchange and Active Directory.
Final error: 0xe00002f8 - Cannot open one or more mail messages because of unknown MAPI errors. Review the job log for more information.
Beremote.log from Exchange 2010 CAS server shows following errors:
 [fsys\mb2] - Checking Permissions for EWS
 [fsys\mb2] - SendSeedMSG: Failed on remote server 80004003.
 [fsys\mb2] - SendSeedMSG FAILED! RC = 0x00000000
 [fsys\mb2] - MapiAdmin::GetMboxList: m_msgStoreDB->GetMailboxTable Failed! hr = 0x80004003
 [ndmp\loops] - Error: OpenObj returns extended error e00002f8
This issue is resolved in Backup Exec 2014 or later versions.
To resolve this issue and receive the new Backup Exec improvements please upgrade to the current version of Backup Exec.
NOTE: Symantec continues to focus on the current release and future releases, there are no plans to address this issue by way of a patch or hotfix in earlier versions of the software at the present time. Please contact your Symantec Sales representative or the Symantec Partner for upgrade information including upgrade eligibility to the release containing the resolution for this issue. For information on how to contact Symantec Sales, please see http://www.symantec.com
Workaround (For BE 2012 and BE 2010 R3):
Manually create the same user account and its mailbox and run the restore job without the option to recreate user account.