I have taken over a problem regarding Exchange 2007 following the restore of a server from a backup 2 years old. Nobody can log into Outlook and I can see a ton of errors in the event logs, event ID 1022 on the Exchange server itself.
Any ideas how to fix this? Google doesn't bring up anything useful apart from checking that the accounts are not disabled or locked - which they aren't.
Log Name: Application Source: MSExchangeIS Mailbox Store Date: 20/12/2011 15:00:26 Event ID: 1022 Task Category: Logons Level: Error Keywords: Classic User: N/A Computer: exchserver.domain Description: Logon Failure on database "First Storage Group\Mailbox Database" - Windows account domain\user1; mailbox /o=blahblahblah/ou=Exchange Administrative Group (FYDIFDSGDDDFT)/cn=Recipients/cn=user1. Error: 1010 Client Machine: computer1.domain Client Process: OUTLOOK.EXE Client ProcessId: 0 Client ApplicationId: N/A