smtplib bug with Windows XP

[stewart.midwinter at gmail.com]

thank Peter, elbert, for the suggestions.  I hadn't thought of using
telnet to try to connect to the SMTP server.  and when I do try, telnet
can't connect either, at least on port 25.  On port 110, it has no
problem.  So, perhaps the IT people have made some configuration
changes; I'll have a chat with them.  I'm relieved that it's not a
Python problem, though.