Here, I have added the admins to this mail to let them know what bugs us... 

And sure with each response I do too get an email like the one attached screenshot. 

Yeah, these are notes bounces but one of the auto responders which is hard to track. 
Maybe there should be a reporting address listed on NANOG page just for this purposes. 


M. 
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On 20 Dec 2018 21:00, Grant Taylor via NANOG <nanog@nanog.org> wrote:

On 12/20/2018 10:17 AM, M. Ömer GÖLGELİ wrote:
> This can happen for many reasons.
> Quitting employees, dropping domains, death whatever.

Yep.  I get it.

> They should be *somehow* auto removed after a certain number of bounces.

The catch is, they aren't /bounces/.  They are auto-responses to the
sender of the email.  Meaning I'll get one to me for this reply.  You
very likely got one to you for the message that I'm replying to.

Delivery to the problematic recipient is very likely succeeding at an
SMTP level.

So, the mailing list manager doesn't see them and has no opportunity to
do anything about them.



--
Grant. . . .
unix || die