If you want to migrate Exchange to another server, you will have to remove Exchange, but do it AFTER you have moved everyone. Build the new machine as a member server of the existing domain. Install Exchange. It will join the existing org automatically. Configure replication of the public and system folders. Once they are replicated, move the users across using the move mailbox wizard. Leave both servers running for a week or so until all the users have used Outlook at least once so that they have redirected. Then remove Exchange following this article: http://support.microsoft.com/default.aspx?kbid=822931 Trouble free, safe and can be done with zero downtime. Simon. -- Simon Butler MCP, MCSA, MVP:Exchange Senior Systems Administrator Amset IT Solutions Ltd. e: simon@xxxxxxxxxxxx w: www.amset-it.com w: www.amset.info -----Original Message----- From: Yann [mailto:yann.tiroa@xxxxxxxxxxxxxxxxx] Sent: 15 June 2005 18:57 To: [ExchangeList] Subject: [exchangelist] Re: Split AD and Exchange2003 http://www.MSExchange.org/ Hello ;) My opinion is to desinstall e2k3 on your DC and reinstall it on the new machine, I think it will be the best and simple way to avoid problems. Note that during this operation, no one could connect to their mailboxes ;-). So do it out of business. If You had one machine for AD 2k3 AND one machine for your e2k3, and for hardware failure you need to change your e2k3 to a new machine with the same name, then there is a particular procedure you have to follow such as reset e2k3 old machine, and do a /disasterrecovery on the new e2k3 machine. But in your case, e2k3 and AD is on the same machine, do do a simple uninstall of you exchange. Regards, Yann ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: exchange-list3@xxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx