Strange domain issues - waterco.com.my

[Dawn Connelly]

Try digging at the IP address of their DNS server rather than at it's name.
That appears to be working. I was noticing a lot of latency...at least from
where I was querying. It might be that when you query against the name
rather than the IP it's taking too long to resolve that and to resolve the
query you are making so it's timing out.
What exactly does the bounce back say? It might be that it's rejecting the
inbound email because you don't have a PTR record or something like that.
There are lots of things that email could be looking at when it comes to
DNS.

On 5/24/07, Elias <elias at streamyx.com> wrote:
>
> Hi guys,
> We've been unable to send mails to waterco.com.my and mails always bounce
> back saying that its a DNS issue. Digging further, we can get a response via
> 'dig waterco.com.my' but no responses via 'dig @ns1.waterco.com.my
> waterco.com.my mx' or 'dig @ns2.waterco.com.my waterco.com.my mx'. Is
> there any logic to this? We seem to think that its probably some weird
> firewall issue but have no experience troubleshooting these cases.
>
> # dig waterco.com.my mx
>
> ; <<>> DiG 9.4.0 <<>> waterco.com.my mx
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1197
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 2, ADDITIONAL: 1
>
> ;; QUESTION SECTION:
> ;waterco.com.my.                        IN      MX
>
> ;; ANSWER SECTION:
> waterco.com.my.         3600    IN      MX      10 mx.waterco.com.my.
>
> ;; AUTHORITY SECTION:
> waterco.com.my.         3597    IN      NS      ns2.waterco.com.my.
> waterco.com.my.         3597    IN      NS      ns1.waterco.com.my.
>
> ;; ADDITIONAL SECTION:
> mx.waterco.com.my.      3600    IN      A       60.51.231.187
>
> ;; Query time: 14 msec
> ;; SERVER: 127.0.0.1#53(127.0.0.1)
> ;; WHEN: Thu May 24 20:16:10 2007
> ;; MSG SIZE  rcvd: 103
>
>
> # dig @ns1.waterco.com.my waterco.com.my mx
>
> ; <<>> DiG 9.4.0 <<>> @ns1.waterco.com.my waterco.com.my mx
> ; (1 server found)
> ;; global options:  printcmd
> ;; connection timed out; no servers could be reached
>
>
> I've contacted the domain owner but they seem to say that everything's
> alright at their end. Can anybody help verify if you guys are also seing the
> same thing? Any assistance rendered is greatly appreciated. Thanks!
>
>
>
>