Useful Links:


Using PuTTY (and SSH) to Bypass Firewalls
SSH Port Forwarding, and how to use PuTTY to connect to internal hosts without opening more ports on the firewall.
HOWTO setup Outlook (Express) to use PuTTY SSH Tunnels
This document provides a HOWTO approach to setup Outlook to use PuTTY tunnels for sending and receiving mails from Although this is specific to, it can easily be adapted to other servers.