Re: unknown_address_reject_code = 550 working random?
Andrea skrev den 2014-01-16 17:36: I had many mails rejected with a 450 code for Sender address rejected: Domain not found, and wanted to change them to a 550 code to avoid queue on the previous mta. dig +trace datasolutions.pe where is dns failing ? postfix softfails if it cant confirm it is not successfull find the domain in question, so if you sure cant find it either, you next step would be to make it rejected, not with a code change from softfails but with a sender domain reject, if you make hardfails on all domains then it will be hard to find why later
unknown_address_reject_code = 550 working random?
Hello, here I have a strange behaviour from postfix. I had many mails rejected with a 450 code for Sender address rejected: Domain not found, and wanted to change them to a 550 code to avoid queue on the previous mta. So I added the row: unknown_address_reject_code = 550 on main.cf and restarted postfix. Now it seems he does it randomly, and this happens on 3 similar servers. Some logs as sample: Jan 16 17:13:24 mta1 postfix/smtpd[19697]: NOQUEUE: reject: RCPT from xxx: 450 xaetapiwij3419...@datasolutions.pe: Sender address rejected: Domain not found; from=xaetapiwij3419...@datasolutions.pe to=xaetapiwij3419@xxx proto=ESMTP helo=xxx Jan 16 17:13:36 mta1 postfix/smtpd[19689]: NOQUEUE: reject: RCPT from xxx: 550 mivaololy1175g@danielmorales.intercast.local: Sender address rejected: Domain not found; from=mivaololy1175g@danielmorales.intercast.local to=mivaololy1175@xxx proto=ESMTP helo=xxx Jan 16 17:13:36 mta1 postfix/smtpd[19676]: NOQUEUE: reject: RCPT from xxx: 450 yjyawe414...@portalvideo.ro: Sender address rejected: Domain not found; from=yjyawe414...@portalvideo.ro to=yjyawe4144@xxx proto=ESMTP helo=xxx Anyone knows why this happens? How can I force to have always 550 for inexistent domain on sender address? This happens on both postfix 2.9.6-2 or 2.2.8-1.2 Thanks, Andrea
Re: unknown_address_reject_code = 550 working random?
On 1/16/2014 10:36 AM, Andrea wrote: Hello, here I have a strange behaviour from postfix. I had many mails rejected with a 450 code for Sender address rejected: Domain not found, and wanted to change them to a 550 code to avoid queue on the previous mta. So I added the row: unknown_address_reject_code = 550 on main.cf http://main.cf and restarted postfix. Now it seems he does it randomly, and this happens on 3 similar servers. Some logs as sample: Jan 16 17:13:24 mta1 postfix/smtpd[19697]: NOQUEUE: reject: RCPT from xxx: 450 xaetapiwij3419...@datasolutions.pe mailto:xaetapiwij3419...@datasolutions.pe: Sender address rejected: Domain not found; from=xaetapiwij3419...@datasolutions.pe mailto:xaetapiwij3419...@datasolutions.pe to=xaetapiwij3419@xxx proto=ESMTP helo=xxx Jan 16 17:13:36 mta1 postfix/smtpd[19689]: NOQUEUE: reject: RCPT from xxx: 550 mivaololy1175g@danielmorales.intercast.local: Sender address rejected: Domain not found; from=mivaololy1175g@danielmorales.intercast.local to=mivaololy1175@xxx proto=ESMTP helo=xxx Jan 16 17:13:36 mta1 postfix/smtpd[19676]: NOQUEUE: reject: RCPT from xxx: 450 yjyawe414...@portalvideo.ro mailto:yjyawe414...@portalvideo.ro: Sender address rejected: Domain not found; from=yjyawe414...@portalvideo.ro mailto:yjyawe414...@portalvideo.ro to=yjyawe4144@xxx proto=ESMTP helo=xxx Anyone knows why this happens? How can I force to have always 550 for inexistent domain on sender address? This happens on both postfix 2.9.6-2 or 2.2.8-1.2 Thanks, Andrea http://www.postfix.org/postconf.5.html#unknown_address_reject_code ... The response is always 450 in case of a temporary DNS error. -- Noel Jones
Re: unknown_address_reject_code = 550 working random?
Andrea: Anyone knows why this happens? How can I force to have always 550 for inexistent domain on sender address? Postfix will ALWAYS reply 450 after TEMPORARY lookup error. Doing otherwise would be a mistake. Wietse
Re: unknown_address_reject_code = 550 working random?
2014/1/16 Wietse Venema wie...@porcupine.org Andrea: Anyone knows why this happens? How can I force to have always 550 for inexistent domain on sender address? Postfix will ALWAYS reply 450 after TEMPORARY lookup error. Doing otherwise would be a mistake. Wietse You mean that after I put unknown_address_reject_code = 550 on main.cfthe ones rejected with 550 are due to my rule and the ones rejected with 450 are due to lookup errors? If yes, it's VERY strange, DNS is responding for sure now. No doubt about it. And, second thing: if a domain is not existing you consider this a lookup error? DNS responds and tells postfix that domain doesn't exist. Shortly: for me it's ok that postfix replies with 450 for lookup error, but is there a way to force him to reply with 550 if DNS is responding and domain is not existing? Thanks, Andrea
Re: unknown_address_reject_code = 550 working random?
Andrea: 2014/1/16 Wietse Venema wie...@porcupine.org Andrea: Anyone knows why this happens? How can I force to have always 550 for inexistent domain on sender address? Postfix will ALWAYS reply 450 after TEMPORARY lookup error. Doing otherwise would be a mistake. A lookup error means that there is no reply - the requestor does not know whether the requested domain exists. This is not to be confused with a reply that says the domain does not exist. Wietse
Re: unknown_address_reject_code = 550 working random?
2014/1/16 Wietse Venema wie...@porcupine.org A lookup error means that there is no reply - the requestor does not know whether the requested domain exists. This is not to be confused with a reply that says the domain does not exist. Wietse Ok... I get my error: postfix replies with Domain not found in both cases, but with 450 if domain is registered and its DNS is down, and with 550 if domains doesn't exist. I didn't check existence of domains because I associated Domain not found with unexistent domain. Thanks, Andrea
