Hi Amy, Microsoft recommends upgrading the FE servers first before upgrading the BE server. However, I have not seen anything specific to whether to upgrade the Bridge head first or mailbox server first. I would upgrade the cluster after the FE upgrade, and then continue with the bridge head. Refer the following links which will be useful. http://support.microsoft.com/default.aspx?scid=kb;en-us;822942 http://support.microsoft.com/default.aspx?scid=kb;en-us;842427 http://support.microsoft.com/default.aspx?scid=kb;en-us;555262 HTH. Regards, Raj Periyasamy Systems Administrator MCSE(Messaging), CCNA ________________________________ From: Amy Kohler [mailto:akohler@xxxxxxxxxxxxx] Sent: Thursday, April 14, 2005 10:52 AM To: [ExchangeList] Subject: [exchangelist] RE: Upgrading from exchange 2000 to 2003 http://www.MSExchange.org/ Hello all, Planning for and intraorg upgrade. We be using new hardware a couple of the servers and re-using the hardware on the others. After running ForestPrep and DomainPrep, I have to figure out my next step. I read where it said to upgrade Front end servers first. Now, the question is... Does this ring true if my only Front End server is just being used for OWA? We currently have the OWA front end, a single be server wich is the master, a be two node active/passive cluster and a be dedictated server to receive the journaling emails. Also, because we are journaling, I want to put a bridgehead server in. Should this be the first server to make 2003? Any replies would be greatly appreciated. Thanks Amy