The current smtplib.py can only do TLS over a standard
port but it does not have support for an ssl wrapped
session which is usually offered on port 465.

I just added a few lines to allow a true ssl socket to
be created instead of a standard one. I also added a
one line function to set this option on.

We have many customers that use clients that can only
do this type of TLS connection.  Postfix and Sendmail
and most others allow for this too, and I wanted to be
able to write up some nagios monitoring scripts using
python.  This allowed me to do it.