Currently I have a setup where a majority of the company uses a company.com address on a generic mail server and our internal corporate users have company.org addresses on Exchange 2003. We want to eliminate .org completely and migrate the Exchange server to use .com addresses and share the namespace with the other mail server. Can I do this “in place” on the current Exchange server or will I need to bring up another Exchange server and treat it like a new migration? Any tips would be appreciated. Thanks!
