Microsoft Outlook lets you configure a delegate for a Microsoft Exchange Server 5.5, Microsoft Exchange 2000 Server, or Microsoft Exchange Server 2003 mailbox. If the delegate that you select is damaged, corrupted, or missing, the following symptoms may occur: Meeting requests are incorrectly sent to previously-removed delegates. You cannot add a user as a delegate if that user was previously a delegate and then had been removed from the list of delegates. A non-delivery report (NDR) is generated when a user sends a meeting request to a mailbox because that mailbox has a delegate whose mailbox has been deleted. The NDR will look similar to the following: Your message did not reach some or all of the intended recipients. The following recipient(s) could not be reached: User D on 4/4/2005 12:10 PM The e-mail account does not exist at the organization this message was sent to. Check the e-mail address, or contact the recipient directly to find out the corre...