On Tue, Aug 28, 2012 at 04:33:16PM -0400, Jon A. wrote: > I'd like to immediately reject mail for all destinations with ONLY a > fakemx.net record. While I could block these as I find them, I'd prefer to > detect it if possible. > One such: > > hitmail.com mail is handled by 0 mx.fakemx.net.
I am not sure what you mean, but probably check_recipient_mx_access can help with rejecting mails targeting RCPT addresses where MX is a given host (here: fakemx's). http://www.postfix.org/postconf.5.html#check_recipient_mx_access
