[Pdns-users] specfic problem with efax.com

Remi Gacogne remi.gacogne at powerdns.com
Thu Jun 20 07:49:00 UTC 2019

Hi Mike,

On 6/20/19 7:20 AM, Mike wrote:
>     I noticed tonight that resolving for 'efax.com' is failing and my
> resolvers (pdns_recursor) are returning 'servfail' while google dns is
> returing the data.
>     The specfic error I notice seems to be:
>     Removing record 'inbound.efax.com|A|' in the answer
> section without the AA bit set received from efax.com
>     I am attaching a regex trace for 'efax' so you can see what I see. I
> guess my question here is this an efax.com problem or something I should
> try to work around with settings at my resolver?

All three servers authoritative for efax.com reply to queries for
efax.com or inbound.efax.com without the AA bit set, which is not valid.
IMHO this needs to be fixed on efax.com's side.

Best regards,
Remi Gacogne
PowerDNS.COM BV - https://www.powerdns.com/

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