mouss wrote: > Ivan Stepaniuk a écrit : >> Hi everybody, I have a postfix+sasl+mysql setup. Could someone point out >> how to reject mails when both FROM and TO addresses are @mydomain.tld, >> and of course only when the sender is not sasl authenticated?
> if you are talking about envelope addresses (MAIL FROM and RCPT TO), > then use a policy service or a milter. postfix access checks act on a > single parameter (no combination of fields). Thanks. Just to be clear, forgetting then about the RCPT TO for a while, could I restrict the sender from within postfix, in a way that when MAIL FROM matches my users map, the user needs to be always sasl authenticated to send mail? and if so, is there a way to do this without further restricting authenticated users? The problem is that my server is behind a gateway (which I don't have access to) that filters spam, but it white-lists all my domains, so I get tons of spam for my users that appears to come from themselves or from users in the same domain. -- Iván Stepaniuk