MX query fails

[Mark Andrews]

> Can some of the DNS experts chime in here?
> 
> Our zone:  mclaneco.com
> Queries from 204.238.58.50 & 51 cannot get a response for an MX query
> from our DNS servers.  Other name servers seem to work fine.  We put a
> packet sniffer on the network yesterday and saw the reply UDP packet
> going out to the above IP, but apparently it never makes it there.
> We're looking into a possible network issue of some sort, but I want to
> verify with the experts that we don't have something misconfigured
> here.  From www.network-tools.com we get a Timed Out error when doing
> the MX query on our domain.  Yet, email is working from thousands of
> others.

	Well the sensible thing to do would have been to post the
	dump of the packet sniffer.  That way would could have
	verified the packet contents to see if there was anything
	wrong with the responses.

	Mark
--
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark_Andrews at isc.org