On Mon, 17 Feb 2020 17:45:46 +0100, Michael Butler wrote: > > Seems there's an issue with freebsd.org's reverse DNS resulting in > refused email, e.g. > > Feb 17 08:58:54 mail postfix/smtpd[41811]: NOQUEUE: reject: RCPT from > unknown[2610:1c1:1:606c::19:2]: 550 5.7.25 Client host rejected: cannot > find your hostname, [2610:1c1:1:606c::19:2]; > from=<owner-freebsd-po...@freebsd.org> to=<i...@protected-networks.net> > proto=ESMTP helo=<mx2.freebsd.org> > Feb 17 10:55:52 mail postfix/smtpd[82117]: NOQUEUE: reject: RCPT from > unknown[96.47.72.81]: 550 5.7.25 Client host rejected: cannot find your > hostname, [96.47.72.81]; from=<owner-freebsd-po...@freebsd.org> > to=<i...@protected-networks.net> proto=ESMTP helo=<mx2.freebsd.org> > Feb 17 11:11:15 mail postfix/smtpd[83299]: NOQUEUE: reject: RCPT from > unknown[96.47.72.81]: 550 5.7.25 Client host rejected: cannot find your > hostname, [96.47.72.81]; from=<owner-freebsd-po...@freebsd.org> > to=<i...@protected-networks.net> proto=ESMTP helo=<mx2.freebsd.org> > > Looking more closely .. > > /home/imb> host 2610:1c1:1:606c::19:2 > Host > 2.0.0.0.9.1.0.0.0.0.0.0.0.0.0.0.c.6.0.6.1.0.0.0.1.c.1.0.0.1.6.2.ip6.arpa > not found: 2(SERVFAIL) > /home/imb> host 96.47.72.81 > Host 81.72.47.96.in-addr.arpa not found: 2(SERVFAIL)
The problem has been resolved but I still sometimes see "connect from unknown[2610:1c1:1:606c::19:2]" in the maillog (today: 6 of 131 connections). Local unbound issue? -- Herbert _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
