ns1-proddns.glbdns.o365filtering.com unreachable?

Wed Jul 6 11:28:48 UTC 2022

On Wed, Jul 06, 2022 at 12:15:31PM +0200,
 Peter van Dijk <peter.van.dijk at powerdns.com> wrote 
 a message of 28 lines which said:

> So, in short, they have a DNS responding problem; their bad handling
> of EDNS makes that worse, because now a resolver needs to get two
> queries (one with EDNS, then one without) through to them before
> resolving something

Thanks, you're right and I was wrong.

It seems it now works again.

Note these authoritative name servers have other problems. For
instance, when receiving NS queries, they put the answer in the Answer
section but not for SOA requests.