When we move a person's mailbox from one domain to another, we usually disconnect the mailbox from the old NT ID and connect it to the NT ID (new) in the destination domain. Often we are required to transfer dl membership to the new account, however, more times than not, we encounter the following message with 'Active Directory' in the title bar: The specific user was not found. If the user exists on another domain controller in the enterprise, it may take 15 minutes or more for the user to be replicated to the global catalog. It doesn't matter how long we wait, nor which DC we connect to, we receive this msg constantly. We are running Exchange 2000 SP3.