On Fri, 10 Jan 2003, Andy Kirk wrote: > 1. Is it possible for someone to basically use my relay to send mail to my > domain
Why would they want to? The point of using a relay is to deliver to a third-party destination. > 3. Is there anyway to stop it, whilst still allowing email destined for > my domain to be received. Unless you need to allow mail relays at all, turn it off. That doesn't stop mail from being delivered to your mail host (or to be sent from it); it just prevents third-party deliveries. If you must allow relaying for some reason, restrict it to known hosts and/or IP's, and enable pop-before-smtp if possible. Better yet, set up squirrelmail, and avoid the whole issue. If you want specific help, you'll need to provide your sendmail.cf or (for postfix) main.cf configuration information. Otherwise, check out the docs on the web site for your MTA. Sendmail has a great section on preventing abusive relays, and postfix has dozens of configuration options for locking it down. Good luck. -- "Of course I'm in shape! Round's a shape, isn't it?" -- redhat-list mailing list unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
