A quick and easy way to post to a newsgroup is to send email directly
to the newsgroup. The target user id is the name of the newsgroup
(in this case uw.cs.cs350) and the machine name is news.cs.uwaterloo.ca.
This is restricted so that it only works if you are sending mail from
a .uwaterloo.ca account. So just be sure that your From: address is
your uwaterloo email address.