tmda-ofmipd + TLS made simpler

I've been happily using tmda-ofmipd wrapped with stunnel on port
465 (SMTPS) for quite some time. Upon noticing and reading through
the ofmipd-stunnel-xinetd example in the TMDA distribution, I
decided to also support TLS on port 587. In my case, it turned out
to be quite a bit simpler than the example, so I wanted to report
on my findings here.

Given:
* a long-running tmda-ofmipd on localhost:8025
* a long-running stunnel on port 465 hooked up to tmda-ofmipd

All I needed to do was add these few lines to my existing stunnel.conf:

    [submission]
    accept = submission
    connect = localhost:8025
    protocol = smtp

(And restart stunnel, of course.) No clever wrapper scripts, I/O
redirection, or extra stunnel config files needed. :-)

- Amitai