Sendmail DNS strangeness

[Jon Radel]

Chris Rees wrote:
> For about four days now, I've had these emails stuck in my mailqueue,
> and I don't understand what the problem is. Sure it says it has a DNS
> failure, but what does it mean?
> 
> 
> Jan 29 16:03:19 amnesiac sm-mta[38492]: n0RM2Hlj021695: to=<******>,
> ctladdr=<xxxx at amnesiac.xxxx> (80/80), delay=1+18:01:02,
> xdelay=00:00:14, mailer=esmtp, pri=8221553,
> relay=mail2.ukrhosting.com. [91.196.0.5], dsn=4.3.0, stat=Deferred:
> 451 DNS temporary failure (#4.3.0)
> 
> 
> I've disabled the firewall, I have a known working named on localhost,
> and resolv.conf is pointing to localhost. Any ideas?

Too much sanitation makes it hard to figure out your problem.  However,
if that amnesiac.xxxx is actually amnesiac.com this probably relates to
the fact that DNS for amnesiac.com is horribly broken.

dig +trace amnesiac.com

should start you down the appropriate path.

--Jon Radel
jon at radel.com
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