I work for a company that joined with another company and I have two networks. A 192.168.1 and 192.168.2 networks, 2 separate 2000 domains, both of the Exchange 2000 servers have the same name, so this causes a problem when I want to put them both on the same network. I want to rename the server or move it to a new server. Ultimately I need to consolidate them onto 1 server, but I need to host multiple domains. 123.com, abc.com,456.com, etc.... Where do I begin?
Hosting multiple domains on Exchange is not a problem as you can assign multiple address spaces for which the server is responsible. Exchange 2000 and above allow you to auto generate SMTP addresses for your users with Recipient Policies and you can set which address is primary on a per user basis. The one designated as the default (primary) is the address which will show up on the From address. It is said that the capability to rename an Exchange server will be available in Exchange 2003 Service Pack 1, but I would be cautious about such a wide reaching utility. However, these are two single server environments to which the capability is best suited. Just make sure you have a good backup!
The other choice is to begin that consolidation to one server, and you have stated this is your goal. You can use some existing tools to make this happen: Active Directory Migration Tool (ADMT) to move the user accounts, Active Directory Connector to synchronize the directory information, the Migration Wizard to move the users from one server to another and the InterOrg Replication Tool to move your Public Folders.
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