Isn't it still a thing where AV/Phishing scanners follow links in messages?
If the "confirm subscription" link takes you directly to a "you've been subscribed" page without requiring an HTTP POST somewhere in there, maybe one of those tools is unexpectedly confirming a subscription. -A On Sun, Mar 15, 2026 at 10:11 AM Sebastian Robin Nielsen via mailop < [email protected]> wrote: > > 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 > > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop > > _______________________________________________ > mailop mailing list > [email protected] > https://list.mailop.org/listinfo/mailop >
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