> But if they have an account on your machine, then they will not use > aol and friends, they will use your server. And then they are > supposed to use your server's name in their sender's address and not > aol. What kind of relay problem do you forsee? I could see this not being a problem if they were given shell access, but what is being referred to, even if they have a shell account, without allowing they ISP's they use to relay mail out through his MTA, the relay idea would not be possilbe. To be a bit more specific, don't setup the relay, have your friends send out e-mail through their ISP's SMTP server. They can set the reply address in there favorite mail program to "[EMAIL PROTECTED]" and use POP3 to pick mail up from your server. -- To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe" as the Subject.