On 2016-08-18 8:37 AM, Pieter Lexis wrote:
Hi Michael,
On Thu, 18 Aug 2016 14:20:25 +0000
Michael <[email protected]> wrote:
Last week I updated to Ubuntu 16.04. So I have a new Postfix version
(3.1.0) as well as a new pdns_recursor version (4.0.0-alpha2).
Since this update Postfix does not receive correct answers for a
particular query anymore. Concretely, queries for A entries of
Office365 mail servers.
For example if Postfix asks for the A entry of
nxp-com.mail.protection.outlook.com, pdns_recursor returns to Postfix
that there does not exists a A record.
However, if I manually do this query with dig, I do get an correct
answer. Please see the logs at the end of the mail.
Besides the queries of Office365 mail servers, the rest is working
fine. I have no idea how to track down that issue? Is there any
setting in pdns_recursor I have to change?
Postfix might be asking for DNSSEC, which is finiky in the alpha version Ubuntu
pulled in. Can you install 4.0.1 from our repositories[1] and try again? 4.0.1
has about 5 months more development time in it.
Also see: https://www.mail-archive.com/[email protected]/msg01648.html
for more information on how Microsoft does DNS and the issues
encountered with Office365. (DNSSEC and EDNS issues, IIRC).
Best regards,
Pieter
1 - https://repo.powerdns.com
_______________________________________________
Pdns-users mailing list
[email protected]
https://mailman.powerdns.com/mailman/listinfo/pdns-users
