Is there any way I can "relay" mail traffic? To explain better, lets say the server that will relay the mail is 10.0.0.1, and the proper mail server containing the mail is Gmail, is there any way I can make the mail client connect to 10.0.0.1, but send all the traffic to Gmail? This is because in the circumstance I have, I can only connect directly to this server, with no direct connection to the internet, so to use mail I have to forward/relay it.
Is there any way this is possible, and if so how?