Are you using long queue ids? Or short? Short one has a big collision field
and basically mostly depends on time, so I can assume you got bunch of spam
in one period of time. Again: queue-id is your local id, it has nothing
outside of your system, except cases when sending side get logged "250
queued as id ..." response from you. Instead look at IP of sender, subnet,
ASN, PTR, envelope and mime from domains. If you got a lot of spam from
something specific just ban it. More over usually you should care about
accepted undetected spam instead of one you already determinate.

On Thu, 17 Apr 2025, 10:33 Doug Hardie, <bc...@lafn.org> wrote:

> Why do all the bounces have the PPn at the end and none of the other
> emails have that (granted a small sample)?
>
> -- Doug
>
> > On Apr 17, 2025, at 01:25, Dmitriy Alekseev <
> alekseev.dmitriy...@gmail.com> wrote:
> >
> > Queue ID has nothing to do with indication of spam or not. It's unique
> identifier inside postfix for specific email, it not mean anything outside
> of it.
> >
> > On Thu, 17 Apr 2025, 09:53 Doug Hardie via Postfix-users, <
> postfix-users@postfix.org> wrote:
> > Lately, when I look at the mail queue I see IDs that end in PPn where n
> is an integer.  So far, all of them have been bounces of spam.  Is my
> understanding correct and if so is there a way to automagically dequeue
> those?  Thanks,
> >
> > -- Doug
> >
> > _______________________________________________
> > Postfix-users mailing list -- postfix-users@postfix.org
> > To unsubscribe send an email to postfix-users-le...@postfix.org
>
>
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