On 2021-12-29 08:41:53 -0500, Scott Kitterman wrote: > On Fri, 10 Jul 2020 11:32:18 +0200 Vincent Lefevre <vinc...@vinc17.net> wrote: > > On 2020-07-10 10:11:38 +0200, Vincent Lefevre wrote: > > > Package: postfix > > > Version: 3.5.4-1 > > > Severity: important > > > > > > postfix cannot send mail if IPv6 is local only. In /var/log/mail.log > > > I've got errors like > > > > > > Jul 10 09:53:22 zira postfix/smtp[865322]: 4C24DC218EE: to=<xxx>, > relay=none, delay=2409, delays=2389/0.03/20/0, dsn=4.4.3, status=deferred > (Host or domain name not found. Name service error for name=joooj.vinc17.net > type=AAAA: Host not found, try again) > > > > > > for several dozens of minutes. > > > > I've eventually found the cause of the issue. First the error message > > is misleading: this has nothing to do with IPv6 (type=AAAA); it should > > be corrected (I'm cloning this bug as: misleading info in error message > > "Host or domain name not found[...]"). > > That's the error message postfix gets from the DNS resolver, so > there's really nothing postfix can do about this.
There is. I suppose that postfix attempts an IPv4 connection and an IPv6 connection, and that the mail is deferred only because *both* are failing. So postfix should output both error messages. -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
