Paul, I’ve done this and simply gave the new server the old server’s DNS name. Change the old one first to something like... oldserver.domain.com and set the new server name either by changing the name of the server or creating an entry in DNS that points to the IP address of the new server. From: Paul IKANZA Sent: Monday, March 21, 2011 2:29 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Migrating to Exchange 2010 Dear All, I have a small house-keeping issue that I would imagine a number of you have gone through and would point me towards; I have more or less completed my new exchange 2010 installation on a new machine and would like to point my users to the new installation (in outlook account settings) via either GPO or any tool that would enable me to do it on a mass scale since I have about 1000+ users. Has anyone done this before, please give specific details on how I can go about it. Thanks in advance. Paul .J IKANZA ICT Manager Vision Group Tel: 0414337342 -------------------------------------------------------------------------------- 0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0~0 THE INFORMATION CONTAINED IN THIS EMAIL AND/OR ATTACHMENTS IS CONFIDENTIAL AND MAY BE PRIVILEGED. NEW VISION PRINTING & PUBLISHING COMPANY LTD MAKES NO WARRANTIES REGARDING THE INFORMATION HEREIN CONTAINED AND ACCEPTS NO LIABILITY FOR ANY LOSS, DAMAGE OR INJURY ARISING THEREFROM. UNINTENDED RECIPIENTS SHOULD DESTROY OR RETURN EMAIL TO SENDER AND DESIST FROM USE, DISTRIBUTION OR STORAGE. NEW VISION MAKES NO WARRANTIES AS TO THE SAFETY, ACCURACY, COMPLETENESS TIMELY DELIVERY OR TIMELINESS OF ANY EMAIL AND RESERVES THE RIGHT TO INTERCEPT OR CHECK OUTGOING AND INCOMING E-MAILS.