Mailbox is currently unavailable in EMC and EMS – Exchange 2010
Scenario:
- Unable to connect to a mailbox which wasn’t disconnected or deleted.
- When trying to access the mailbox , e.g., opening the mailbox calendar folder
Below error occurs,
Error(s):
“The set of folders can’t be opened, the attempt to log-in the Microsoft exchange server has failed”
- Mailbox export to pst also failed,
- Tried login to the user mailbox via owa and outlook,
- Both failed with an error stating unable to connect to mailbox
Solution:
- Run MAPI connectivity test on the user’s mailbox to check if everything is fine with the mapi connectivity,
Test-MAPIConnectivity “tober” | fl
RunspaceId : c55b4756-38d9-4bcd-81dd-d0800ec6ce7d
Server : W8-EXCH-MBOX-E1
Database : MBOX1 DB2
Mailbox : tober
Result : *FAILURE*
Latency : 00:00:00
Error : [Microsoft.Exchange.Data.Storage.StorageTransientException]: Cannot open mailbox /o=xxxxxx/ou=Exchange A
ministrative Group (FYDIBOHF23SPDLT)/cn=Configuration/cn=Servers/cn=xxxxxx/cn=Microsoft System A
tendant. Inner error [Microsoft.Mapi.MapiExceptionMailboxQuarantined]: MapiExceptionMailboxQuarantined: U
able to open message store. (hr=0x80004005, ec=2611)
Diagnostic context:
Lid: 55847 EMSMDBPOOL.EcPoolSessionDoRpc called [length=152]
Lid: 43559 EMSMDBPOOL.EcPoolSessionDoRpc returned [ec=0xA33][length=274][latency=0]
Lid: 32881 StoreEc: 0xA33
Lid: 50035
Lid: 64625 StoreEc: 0xA33
Lid: 50128
Lid: 1494 —- Remote Context Beg —-
Lid: 26426 ROP: ropLogon [254]
Lid: 22787 Error: 0x0
Lid: 13032 StoreEc: 0x8004010F
Lid: 25848
Lid: 7588 StoreEc: 0x8004010F
Lid: 25840
Lid: 6564 StoreEc: 0x8004010F
Lid: 27395 Error: 0x0
Lid: 61867
Lid: 37291 StoreEc: 0xA33
Lid: 53675
Lid: 12716 StoreEc: 0xA33
Lid: 20794
Lid: 28474 StoreEc: 0xA33
Lid: 22330 dwParam: 0x0 Msg: 14.03.0174.001:W8-EXCH-MBOX-E1
Lid: 1750 —- Remote Context End —-
Lid: 50288
Lid: 23354 StoreEc: 0xA33
Lid: 25913
Lid: 21817 ROP Failure: 0xA33
Lid: 26297
Lid: 16585 StoreEc: 0xA33
Lid: 32441
Lid: 1706 StoreEc: 0xA33
Lid: 24761
Lid: 20665 StoreEc: 0xA33
Lid: 25785
Lid: 29881 StoreEc: 0xA33
Identity :
IsValid : True
Mailbox is quarantined
- Check the registry entry to find if the mailbox is found under the appropriate quarantined sub key,
HKLM\SYSTEM\CurrentControlSet\Services\MSExchangeIS\<Server Name>\Private-{db guid}\QuarantinedMailboxes\{mailbox guid}
- Get the Mailbox and database GUID via powershell
Get-mailbox “MailboxName” | fl *GUID*
- Deleted the mailboxguid subkey
- Dismounted and remount the database
- Again Run the Mapi connectivity test to confirm successful report
- Now you can successfully login and send emails
- Would Suggested to move the mailbox to a different database on the same/different server to eliminate any corruption
Possible Cause for the mailbox to be quarantined is due to the poison messages
Support Links,
http://technet.microsoft.com/en-us/library/gg490642(v=exchg.80).aspx
http://support.microsoft.com/kb/2603736
Regards,
Ganesh G