I have installed Exchange 2007, i am on the phase of finalizing the installment but i get stuck on Hub Transport, because i am not sure what to do i have read an article on the web but it was not clear, anyway my domain name is ec3global.local, which i can see in hub transport as an accepted domain and the type is authoritative, now i have two different companies under one forest and they are going to receive emails from the following domains,
Now when i click on new accepted domain under hub transport it asks me for three options,
2.Internal Relay Domain.
3.External Relay Domain.
So i am not sure which one to choose for, my ISP is handling the MX records.
The second question is do i have to install Mail server because under properties of user profile (i.e AD) i cant see email profiles tab.