Keld Jørn Simonsen a écrit : > iA problem I have again with the DNS (lack of query) > > > I have in my mail queue: > > C074C641AF 2236 Sun Jul 12 15:40:56 k...@rap.rap.dk > (host spike.porcupine.org[168.100.189.2] said: 450 4.1.7 <k...@rap.rap.dk>: > Sender address rejected: unverified address: host > rap.rap.dk[85.81.22.91] said: 450 4.7.1 Client host rejected: cannot find > your reverse hostname, [168.100.189.2] (in reply to RCPT TO command) (in > reply to RCPT TO command)) > wie...@porcupine.org >
Please show logs instead of queue infos. If I understand it, you sent a mail to porcupine, which did a sender verification but your system rejected its mail because it couldn't resolve its PTR. This may be because of a temporary dns failure. > Consulting my named/log I see: > > 13-Jul-2009 11:11:13.712 client 127.0.0.1#33672: query: porcupine.org IN MX + > 13-Jul-2009 11:11:13.724 client 127.0.0.1#33672: query: spike.porcupine.org > IN A + > > But no: > > 13-Jul-2009 11:12:12.352 client 127.0.0.1#33672: query: > 2.189.100.168.in-addr.arpa IN PTR + > > Which is a query by hand.s > > Shouldn't postfix query for the reverse hostname? > Could there be a reason for postfix not to query the PTR RR? > postfix looks up the PTR of a client, unless this is disabled (in main.cf or master.cf). and it does so by using the system resolver. so if you didn't disable the client dns lookup, then the problem may be in your system resolver.
