[HECnet] All gone silent

[Johnny Billquist]

On 2021-08-17 03:04, Paul Koning wrote:
> 
> 
>> On Aug 16, 2021, at 6:36 PM, Mark <mwjr at protonmail.com> wrote:
>>
>> Mystery solved (or at least the mystery of no response) - I used to have some issues when I ran authoratitive DNS and mail directly from our school's IP addresses rather than an 'established' (big tech co) source
> 
> Why would that explain the failure to answer DNS queries?  DNS servers are supposed to answer queries from everyone.  I've never heard of failing to do so.  FWIW, I just tried asking ns1.protonmail.ch about mail.protonmail.ch, and it was happy to answer me (to my random Comcast client addresses, IPv4 and IPv6 both work).

I think the comment should be read as "that explains the failure of the 
mail being delivered".

Why the DNS queries are blocked from my mail server remains a mystery, 
but it is a fact that they are.

I could/should update that machine, in case there is something in my 
whole setup that is a reason, but right now I can't really understand 
what that would be...

If I explicitly give the IP address of ns1.protonmail.ch as the name 
server, I do get a response. Not sure if it might in the end be some 
other name server that is refusing me, and I don't really feel like 
trying to figure out where things are going wrong right now.
But maybe updating my system will help. We'll see. Something I'll try in 
the next day or two.

   Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol