looks like the authoritative nameservers cannot handle EDNS(0) queries
(standardized in 1999, rfc2671). While this is not a problem per see,
the FORMERR response is not according RFC. For more details see:
https://ednscomp.isc.org/ednscomp/17c95198e4#edns
Name resolution therefore relies on
> we see sporadic DNS resolver errors for A records of
> *.mail.protection.outlook.com
>
> Only a few per day vs many successful lookups.
I haven't noticed this, but we found out last week that Microsoft apparently
has enabled a new cluster of servers for
europe in networks 40.92.7[345].*.
Hi Ralf
We see these problems too.
best regards,
Felix
Am 22.05.2018 um 11:09 schrieb Ralf Zenklusen, BAR Informatik AG:
>
> Hi,
>
> we see sporadic DNS resolver errors for A records of
> *.mail.protection.outlook.com
>
> Only a few per day vs many successful lookups.
>
>
>
> Anybody else
Hi,
we see sporadic DNS resolver errors for A records of
*.mail.protection.outlook.com
Only a few per day vs many successful lookups.
Anybody else seeing these?
Kind regards
Ralf
Ralf Zenklusen
Dipl. El. Ing. HTL
Leiter Internet
BAR Informatik AG
Weidenweg 235
3902
Hi,
we see sporadic DNS resolver errors for A records of
*.mail.protection.outlook.com
Only a few per day vs many successful lookups.
Anybody else seeing these?
Kind regards
Ralf
Ralf Zenklusen
Dipl. El. Ing. HTL
Leiter Internet
BAR Informatik AG
Weidenweg 235
3902
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