“I have been toying with running secure pop and smtp email of
late for a few roaming users as well as myself. It has been quite
simple to setup running on Postfix and largely moves toward
securing the transaction of checking email (other than from a man
in the middle attacks, somewhat unlikely).
“The beauty is leveraging Stunnel–which allows one to configure
your preferred mail server as you wish and simply intercept your
secure ports (for example Port 995 for POP3s and 465 for