|So Jason finally motivated me enough to fix the mail relaying problem. If you can't relay mail through us that doesn't originate from your email address at vectorstar.net, good. You're not supposed to be able to. And if you're still using mail.vectorstar.com for your SMTP server, CHANGE IT to mail.vectorstar.net.
Ideally I'd prefer a slightly more complex solution, but I have little faith in my C programming skills. :)