We are currently migrating to Ex2003. We currently have Ex2000 Enterprise on Win2K.
The idea is to install a new Exchange 2003 Standard server into the organisation and move mailboxes to the new server. Then we will remove the Ex2000 Ent server from the addition leaving the new Ex2003 Standard on it's own. Rebuild the old server with Ex2003 Standard and add it to the Exchange org.
My question is, is it possible to have one enterprise server and one standard server in the organisation? I know you cannot "upgrade" from Ent to Std, but is there anything stopping me using a mix of both versions?