Re: DNS Problem
On Tue, 2 Dec 1997, Kevin Traas wrote:
> If you've got a suggestion, I'd love to hear it.
Okay, first suggestion is to turn off rich text or HTML email in your mail
client. Email does NOT have pretty colors or centering and I usually just
delete any message I see which looks like a webpage.
> I've just had a client contact me. Their getting the following in
> /var/log/messages:
>
> Dec 2 12:47:16 inetgw named[140]: "axionet.com IN MX" points to a CNAME
> (mail.axionet.com)
> Dec 2 12:47:16 inetgw named[140]: "axionet.com IN MX" points to a CNAME
> (smtp.axionet.com)
>
> Brief info on their system config. It's a diald device for their
> internal LAN. fetchmail retrieves from a multi-drop box and delivers
> locally. named is running locally for spoof internal DNS config and to
> forward all external to ISP nameserver.
>
> All's been working fine for months. They say nothing's changed.
If mail.axionet.com and/or smtp.axionet.com are CNAME records, you need to
point the MX to the A record they point to (or change the CNAME to an A).
The DNS specs state that a CNAME is an illegal target for an MX record,
because it generates possibilites for mail loops. Most MTAs follow CNAMES
anyway, but named is perfectly correct in complaining.
--
Scott K. Ellis <storm@gate.net> http://www.gate.net/~storm/
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