I would absolutely not do it this way. I would do a move-mailbox from old-server to new-server and then properly remove the old server. CAN you do it the other way? Sure. But you’ll have to touch every single user desktop to update the MAPI profile. Regards, Michael B. Smith MCITP:SA,EMA/MCSE/Exchange MVP http://TheEssentialExchange.com From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of John Parker Sent: Thursday, September 04, 2008 7:39 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Exchange 2003 to 2007 Via backup Exec Hey all... We currently have a 2003 server standard running exchange 2003 Enterprise. It is on it’s last leg and we are replacing it. We are getting our new server in tomorrow. I will be installing Server 2008 64bit and Exchange 2007 Std. Once all of this is installed I intend to restore the individual exchange 2003 mailboxes to the 2007 machine from backup exec 11d. Also, to make things go faster, I am also running the backup to disk using a backup to disk folder I created. my consultant sources say that this will work. So... My intention is to shut down the smtp service and then perform a backup. Once Backup is complete, then I assume that I install a Backup exec agent on the 2007 box and then restore the individual mail boxes. I am also assuming that I will need to go to the new server afterwards and reconnect the mail boxes? Or can I use the “Recreate user accounts and mailboxes” feature within Backup Exec? Am I correct in this ideology? Thank you for your help in this. THE INFORMATION CONTAINED IN THIS EMAIL MESSAGE AND IN ANY ACCOMPANYING ATTACHMENT IS A CONFIDENTIAL AND PRIVILEGED COMMUNICATION. IT IS INTENDED ONLY FOR THE USE OF THE INTENDED RECIPIENT OR RECIPIENTS. IF YOU ARE NOT THE INTENDED RECIPIENT OR THE EMPLOYEE OR AGENT RESPONSIBLE TO DELIVER THIS EMAIL TO THE INTENDED RECIPIENT, YOU ARE HEREBY NOTIFIED THAT ANY DISCLOSURE, COPYING OR DISTRIBUTION OF THE CONTENTS OF THIS TRANSMISSION IS STRICTLY PROHIBITED. IF YOU HAVE RECEIVED THIS EMAIL IN ERROR, PLEASE NOTIFY US IMMEDIATELY BY PHONE.