We are running MSExchange 2000 with 300 mailboxes for internal users. I have today disabled a user account in Active Directory, found out that she was stilll employed and then re-enabled her AD account. No other changes had been made.
However, the user can logon but when launching MSOutlook (2003) she receives the foloowing message:
Unable to open your default e-mail folders. The attempt to logon to the Microsoft Exchange Server computer has failed.
The user can no longer authenticate with our Exchange 2000 server and I don't know how to resolve this.