> On Dec 4, 2007, at 8:00 AM, Bill Tangren wrote: >> 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. > > reject_unknown_sender_domain rejects messages when the domain part of > the SMTP sender address cannot be found in DNS. > >> 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> > > Look for a reject_unknown_client directive in one of the > smtpd_mumble_restrictions in your main.cf -- then remove it. That did it! I have email poring in now. Now if I can just get the firewall guy to fix the DNS problem so I can put these restrictions back... Thanks! > > -- > Ian Ward Comfort <icomfort@xxxxxxxxxxxxxxxxxxxx> > System Administrator, Student Computing, Stanford University > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- Bill Tangren U.S. Naval Observatory Ad eundum quo nemo ante iit -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
