In Exchange 2003 it was possible to remove/disconnect a mailbox from an Active Directory account but not delete the AD account. That way you could restore a backup of the mailbox and reattach it to the original AD account. In Exchange 2010, when in the Exchange Management Console and working with the Recipient list, if I remove a mailbox, it will also delete the associated AD account. I can not find any option to remove the mailbox but leave the AD account still active. Any thoughts on how to di this would be appreciated. Many thanks in advance.