Can't resolve MX

[Barry Margolin]

In article <879ga1$fic$1 at nnrp1.deja.com>,
Fernando Ronci  <fernando at waycom.com.ar> wrote:
>Hi,
>
>I am experiencing a weird problem with two domains.
>These domains are delegated to the same ISP.
>The problem is that my DNS doesn't resolve their MX
>record. Only MX. It's not a routing problem as I can
>perfectly trace/ping any host within their network.
>I have a ton of mails in the queue as my sendmail failed
>to get the MX record.
>Here goes a query to my DNS using nslookup: (server1.waycom.com.ar)
>One of the domains I'm having trouble to get its MX record
>is cresud.com.ar
>
>> set type=mx
>> cresud.com.ar
>Server:  server1.waycom.com.ar
>Address:  200.41.237.2
>
>*** Request to server1.waycom.com.ar timed-out
>> set type=any
>> cresud.com.ar
>Server:  server1.waycom.com.ar
>Address:  200.41.237.2
>
>Non-authoritative answer:
>cresud.com.ar   nameserver = ns.datamarkets.com
>cresud.com.ar   nameserver = ns.datamarkets.com.ar
>
>Authoritative answers can be found from:
>cresud.com.ar   nameserver = ns.datamarkets.com
>cresud.com.ar   nameserver = ns.datamarkets.com.ar
>ns.datamarkets.com      internet address = 207.234.164.2
>ns.datamarkets.com.ar   internet address = 200.32.3.129

Your server seems to have a wrong address cached for ns.datamarkets.com.
When I look that up I get:

ns.datamarkets.com.	86400	CNAME	datamar1.datamarkets.com.
datamar1.datamarkets.com.	86400	A	208.21.40.66

However, when I just queried your server, it had this MX record in its
cache.  It must have switched to the other server at some point.

-- 
Barry Margolin, barmar at bbnplanet.com
GTE Internetworking, Powered by BBN, Burlington, MA
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