On Wednesday 19 October 2011 13:05:58 N. Yaakov Ziskind wrote: > I'm getting errors like this from one particular sender: > > Oct 19 13:54:13 pizza postfix/smtpd[31372]: NOQUEUE: reject: RCPT > from chocolate.egps.com[38.119.130.7]: 450 4.1.8 > <nob...@vps.mydomain.com>: > Sender address rejected: Domain not found; > from=<nob...@vps.mydomain.com> to=<sh...@ziskind.us> proto=ESMTP > helo=<chocolate.egps.com>
The HELO resolves: chocolate.egps.com. 3600 IN A 38.119.130.7 But: Host vps.egps.com. not found: 3(NXDOMAIN) > where the capitalized domain name has been munged. > I'd like these email to get through. > > (Apparently, MYDOMAIN.com is a real domain, but vps.MYDOMAIN.com Don't use real domain names in examples, see http://example.com/ > isn't.) > > I tried putting vps.MYDOMAIN.com into DNS in the postfix box, but > that didn't help (perhaps I didn't do it right?) Perhaps not. That IS one of the right solutions. Another one is to quit sending mail with bogus sender addresses: use a name that does exist in DNS. > So, how can I whitelist this domain? You could use a check_sender_access lookup to bypass the reject_unknown_sender_domain restriction you are using. But that's wrong, you should do one of the two above. > (postconf -n output found at http://www.ziskind.us/postconf.out) You should post that inline. In any case, none of your three NS hosts are answering queries. -- Offlist mail to this address is discarded unless "/dev/rob0" or "not-spam" is in Subject: header
