I currently have 3 Exchange Servers in my organization. There is one main server (the first exchange server in the forest) here at our headquarters. I then have 2 remote servers at different locations. We use pix firewalls for security. The way we have our firewalls configured - each of the remote servers can contact our headquarters server but they cannot contact each other. Our server at our headquarters can contact both servers. Since the 2 remote servers cannot contact each other directly, they are unable to send mail to each other.
What I would like to do is configure our main server at our headquarters to act as a bridgehead server to our remote locations. I tried this by creating 3 seperate routing groups each with one server. However I was unable to succesfully configure the 2 remote locations to talk to each other. I used the routing group connector and tried to link the 2 sites. However, when I select the routing group that one of the remote hosts is on - it only allows me to select that remote server as a remote bridgehead - not the server at our headquarters. Since the two remote servers do not have access to each other this does not work. Please explain to me how to connect everything. Do I just need to use the SMTP connector instead?