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Re: No MX record. Postfix not trying A record
From: Jussi Silvennoinen (jussi_postfix
silvennoinen.net)
Date: Thu Feb 02 2006 - 14:36:26 CST
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> >>Have a few folks out there whose domains either do not publish
> >>MX records, or they have set their dns acls up in a strange way
> >>so that we cannot find their MX records.
> >>
> >>At any rate, postfix can't find a MX record, so it is deferring delivery.>
> >
> > Show an example for this.
>
> Okay.
>
> From the logs:
> (one entry of many going back 4 days)
>
> Feb 2 07:36:53 smail postfix/smtp[4067]: 0A49211AE61:
> to=<-name-removed-nfcu.org>, relay=none, delay=161284, status=deferred
> (Name service error for
> name=nfcu.org type=MX: Host not found, try again)
>
> ---
> $ dig NS.NAVYFEDCU.ORG nfcu.org IN MX
>
> ; <<>> DiG 9.2.5 <<>> NS.NAVYFEDCU.ORG nfcu.org IN MX
> ; (1 server found)
> ;; global options: printcmd
> ;; connection timed out; no servers could be reached
$ dig NS.NAVYFEDCU.ORG nfcu.org a +short
208.35.254.222
$ dig NS.NAVYFEDCU.ORG nfcu.org a +short
12.154.64.176
$ dig NS.NAVYFEDCU.ORG nfcu.org a +short
208.35.254.222
$ dig NS.NAVYFEDCU.ORG nfcu.org a +short
12.154.64.176
$ dig NS.NAVYFEDCU.ORG nfcu.org a +short
12.154.64.176
My guess is that ns.navyfedcu.org points to a loadbalancer which has one
or more screwed boxes behind it.
--
Jussi
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