Rich a écrit : > I used the term "open relay" because unfortunately for you, you can't arbitrarily redefine common terms. "open relay" is a relay that can be used by anybody from anywhere, including all the spammers and abusers.
what you want is called an MSA, for "Mail Submission Agent". only your users can use it as a relay. > I don't want to limit the by > setting "mynetworks" to a couple of networks. I was thinking by using > sasl and tls I could set mynetworks to 0/0. > if you do that, you won't be able to send mail for more than a few days. you will be blacklisted. do what Noel told you. read about SASL and TLS. also consider using port 587 instead of 25. (587 is the standard submission port).
