In your main.cf do you have either of the following enabled for smtpd_client_restrictions: reject_unknown_reverse_client_hostname reject_unknown_client_hostname > I'm having a problem with postfix, version 2.2.10-1.1.el4. Because of the > screwy firewall configuration here, some lcoal email comes in to my email > server with no reverse DNS entry. I had been rejecting those, but now that > some of our own email is coming in that way, I need to turn it off. I > thought I had been using reject_unknown_sender_domain to reject such > email, but when I comment it out, I'm still rejecting email with no > reverse DNS entry. > > My question: How do I turn this feature off? > > This is an example of a rejection in the log: > > Dec 4 10:49:47 aa postfix/smtpd[19280]: NOQUEUE: reject: RCPT from > unknown[x.x.x.x]: 450 Client host rejected: cannot find your hostname, > [x.x.x.x]; from=<emailaddy> to=<localuser> proto=ESMTP helo=<sender> > > > > -- > Bill Tangren > U.S. Naval Observatory > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
