I am trying to clarify a few points on our migration to exchange. We currently have three subnets all in one site. This is because all three subnets are connected via a 6mb circuit. Also...we don't really have a front end back end setup...one server in the main site has some registry hacks and is set up as a kind of fe/be dual role. That being said we have single 2003 box in each of three sites, Ill be building the cas/ht and mailbox server in the local site that is the ingress for our mail.
1) when I create the CAS and HT part..do I need to create connections for each server
2) when creating the legacy dns namespace how do I do that to each server?
3) is TLS going to be mandatory on the smtp part?