yeah thats a possibility aswell, that someone's private email "expands" to the 
ticket system. But that would be a weird configuration aswell since responses 
to that guy's private email would create tickets in the work system.
My tought was how the ticketing system gets the list mail from the beginning 
(so it can reply on it).
And THAT requires confirmation to the list, since the "mailop" list will not 
send to someone who has not double-opted-in.


-----Ursprungligt meddelande-----
Från: Jay Hennigan via mailop <[email protected]> 
Skickat: den 15 mars 2026 18:06
Till: [email protected]
Ämne: Re: [mailop] [signed by: [email protected]]

On 3/15/26 09:33, Sebastian Robin Nielsen via mailop wrote:
> On the other hand, the question is how [email protected] can end up in a 
> ticketing system in the first place, as it would require some sort of 
> confirmation to join the mailing list.

I don't think that happened.

> Thus it must have been some weirdo employee that have clicked the 
> confirmation link, or the ticketing system have auto-clicked it for some 
> reason (security scanner link scanner or similiar).

My guess is that someone signed up to the list using an email address 
that expands to an internal list including the ticketing system.

The list's Reply-to header is set to the poster, so the ticketing system 
spams the original poster to the list directly, not via the list itself.

No confirmation to the list is needed because the ticketing system is 
"replying" directly to the individual that posted the original message, 
not to the list.

Hanlon's Razor applies.

-- 
Jay Hennigan - [email protected]
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV

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