[dns-operations] What's going on at Microsoft?

[Stephane Bortzmeyer]

On Fri, Oct 21, 2022 at 08:49:16AM +0200,
 Borja Marcos <borjam at sarenet.es> wrote 
 a message of 41 lines which said:

> Right now I have quite a lot of pollution on my recursive error logs due to two Microsoft operated domains:
> 
> microsoftdnstest.net
> msedge.net

For microsoftdnstest.net, the two name servers do reply but they reply
SERVFAIL (and, unfortunately, without EDE).

msedge.net works fine for me. (But of course, names like
t-ring-fallback.msedge.net which redirect to microsoftdnstest.net are
not useful.)