I have a question on how to link two LANs together. On one LAN (Small network) we have one Domain Controller; on the other LAN (Main network) I have a Domain Controller and a Exchange Server. We have created a tunnel connection between both sites with two routers. What’s the best way to configure the servers so I can have everyone on the same Domain? or tree? I don’t want people using POP3 or OWA anymore.