this has nothing at all to do with programming. moved to Linux - Networking. please try to post in the right forum in future. thanks.
ssh tunneling may be of use to you, but only if you can specify the ip of the "remote" server. by default you would need to change it from the real ip to 127.0.0.1:1755, which ssh can then intercept an throw at the real box at the other end. if you can't change it then there is a possibility of use an iptables rule to do a dnat to point it back at yourself, but that's going to get messy.
so for the basic ssh tunnelling you'd be doing
sshd -L 1755:192.168.12.34:1755 email@example.com