I'm sorry but this makes no sense. First off, she should be doing nothing from her home computer. Ideally she would have a shell that'd she'd connect to via Tor (or some other anonymous method), and then from that shell telnet to her school's mail server. Hell, if you have enough time on your hands, get a few zombie computers, proxy through each of them, and then telnet to the mail server from the last one.
Posted by: computernerd22
Yea, why are you doing this from your 'home' computer? Heres a better idea, click on start, go to run, type telnet mail.school.net 25
Now you should be directly connected to the schools mail server running on port 25.