Hmm What are your (if present) settings for the following: smtpd_client_restrictions smtpd_helo_restrictions smtpd_sender_restrictions smtpd_recipient_restrictions > >> 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 > > > No. The only other "reject_unknown" I have is: > > reject_unknown_recipient_domain under smtpd_recipient_restrictions. > > > > >> >>> 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 >> > > > -- > 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 > > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
