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
For a start, this computer will no longer have a trust relationship with the domain due to, well everything. Computer password will have expired, certificates will be wrong and so on. You'd be better rebuilding the server and importing your mailboxes I'd have thought.