stunnel: stunnel (Universal SSL tunnel) stunnel: stunnel: The stunnel program is designed to work as an SSL encryption wrapper stunnel: between remote client and local (inetd-startable) or remote servers. stunnel: The goal is to facilitate SSL encryption and authentication for stunnel: non-SSL-aware programs. stunnel: stunnel: stunnel can be used to add SSL functionality to commonly used inetd stunnel: daemons like POP-2, POP-3 and IMAP servers without any changes in the stunnel: programs' code. stunnel: