We have 2 exchange 2007 servers. The first is the primary located in Site A. The second is located in Site B across a MPLS VPN circuit.
I want the mail from the server in Site B to be routed through the server in Site A rather than going directly out of the gateway in Site A. The reason is so that our automated signature program in Site A can add the signature to mail going out of its gateway.
How can I route this mail? Is this a smart host configuration?