Mod_python and SMTP server

[Nancy]

Hi,
  Is there any one knows, if I want to use mod_python to handle my
html form, I must have a SMTP server on my PC(winxp pro)?
  Where can I get a free SMTP server?

  I cann't follow mod_python's manual example
(http://www.svencoop.com/manual/mod/mod_python/tut-pub.html), why ...

  Thanks a lot.

Nancy