[Pdns-users] asking a-k.cctld.us Servers for MX Records

[Thomas Mieslinger]

Hi Peter,

thanks for sharing your deep knowledge which pretty cool tools exist out 
there.

I've opened up a ticket neustar. Sent this issue to dns-operators list. 
And I applied a hotfix

+us=8.8.8.8

in the recursor which are hit by this Problem. I don't understand why 
google dns is able to resolve the mx records, but now the mail queues 
can be drained.

Best regards
Thomas

On 03/26/2013 09:11 AM, Peter van Dijk wrote:
> Hello Thomas,
>
> On Mar 26, 2013, at 9:00 , Peter van Dijk wrote:
>
>> On Mar 26, 2013, at 8:47 , Thomas Mieslinger wrote:
>>
>>> am I the only one having trouble to resolve MX records for .us Domains? When doing a dig MX soderman.us @a.cctld.us in Europe  I get no answer at all. In the US I get a referral to the nameservers which are authoritative for this domain. To make this even more strange dig AAAA soderman.us @a.cctld.us or any other record type except for MX just gives the referral.
>>
>> I see the same, testing from one location in Europe (inside UPCs network) and one location in the US (inside Softlayer's network). No answer for the MX, referral for the AAAA. You might want to take this to https://lists.dns-oarc.net/mailman/listinfo/dns-operations
>
>
> A more extensive test from 191 nodes at ring.nlnog.net shows similar results. AAAA gets referral on all of them, MX only on 42, and those 42 are indeed mostly in the US.
>
> Kind regards,
>