Both Domains are Windows 2003 Domains. Trusts are set up between the two domains. DNS is setup on both domains, and DNS Forwarding is also setup.
I just loaded Exchange 2003 on Domain A and it is working fine.
I would like to setup Domain B to use Domain A's exchange server (with everyone using the same email SMTP extension)
I have loaded Exchange System Management Tools on Domain B's Domain Controller, and did run Forest Prep before install. So now users in domain B can have exchange tags, but does not do them any good. Not sure if I am heading down the right path, any help is appreciated.