Exchange Times

If you ever try to move a mailbox and you receive an error that the mailbox is disabled but you have checked and the mailbox is not disabled then try the following:
(other errors we received was trying to access the mailbox using Outlook Web App and stating it’s disabled or from Outlook stating you need to connect to Exchange)

• Verify that the mailbox is indeed not disabled. If not proceed to the next steps
• Open Exchange Management Shell and run: Set-CASMailbox -Identity mailboxSMTPAddress@domain.com -MAPIEnabled $False
• Wait for replication
• Run: Get-CASMailbox mailboxSMTPAddress@domain.com (check that it shows MAPI Enabled is false)
• If MAPI Enabled is false run: Set-CASMailbox -Identity mailboxSMTPAddress@domain.com -MAPIEnabled $True
• Wait for replication
• Run: Get-CASMailbox mailboxSMTPAddress@domain.com (check that it shows MAPI Enabled is true)
• Try an connect to the mailbox using Outlook, Outlook Web App or moving the mailbox.
• If you still get an error try running: Clean-MailboxDatabase DatabaseNameWhereTheMailboxIsHomed (we actually had to run this for one of the mailboxes giving us issues)

This should sort out the issue for you.