Opening OWA produced the following error : A mailbox couldn’t be found for Domain\User. If the problem continues, contact your helpdesk.
Opening Outlook produced Outlook cannot open the file because it is not associated with the default
Even though the user was in the GAL , Sending a user an email produced the following bounce back:
#554-5.2.1 mailbox disabled 554 5.2.1 STOREDRV.Deliver.Exception:AccountDisabledException.MapiExceptionMailboxDisabled;
Run this after Disabling a Mailbox ( it’s a nightly job otherwise )
Get-MailboxDatabase | Clean-MailboxDatabase