In my opinion (MY opinion) I think that schools should allow email. Its the new way of communication.
Doing what I have suggested (Windows Mail Beta) is not illegal at all, and I believe that this information can be shared, but Armando, I cant expect you to do what I say, just don't go around and tell all of your friends, as that way will be blocked when people find out.
(Hmm, this reminds me of the time that I showed someone how to send messages using the school network, they told a few people, and they sent a message to every computer, and got into some trouble. Then, because I am the computer wizard in the specific classroom I was in, my account was being monitored)