smtplib.py is the library for send email using SMTP. Connection
refused means that your mail settings aren't configured properly, or
you don't have a mail daemon running.
The `password_reset` function "Allows a user to reset their password,
and sends them the new password in an e-mail." [1]
[1]: http://www.djangoproject.com/documentation/authentication/#django-contrib-auth-views-password-reset