Re: best practices for fighting spam with Debian?
On Friday 16 December 2016 21:19:45 Joe wrote:
> On Fri, 16 Dec 2016 20:55:32 +0000
>
> Lisi Reisz <lisi.reisz@gmail.com> wrote:
> > The fact that some people do not know
> > enough to use Spam folders differently from deleted mail is not a
> > reason why the rest of us should have our email dropped.
>
> The reason why your mail gets dropped is that it cannot accurately be
> identified as not-spam, as I'm sure you know.
You have over-cut. Here is what you cut, which is highly relevant:
"On Friday 16 December 2016 09:58:36 tomas@tuxteam.de wrote:
> > At least in the case of delivery to the SPAM box the mail has been
> > actually delivered to the user.
>
> "Technically", yes.
No, not just technically. Actually. The recipient then has the choice
whether to ignore it or not."
Delivering to a Spam folder, and dropping mail, are simply not the same thing,
however hard it may be to distinguish the correct route for any one piece of
mail.
Lisi.
>
> If it really is spam, then the Reply-To header is forged, and the last
> thing that should be done is to send the message 'back', *quoting* *it*
> *in* *full*, to a third party who had nothing to do with it, and who has
> now been sent spam from a presumably legitimate mail server.
>
> The problem is not to do with the silent dropping of spam, which is the
> correct behaviour for a mail server which has been foolish enough to
> accept it in the first place, but to identify it with 100% accuracy and
> thereby to prevent the dropping of genuine email. Solve that and you
> can name your price...
>
> The next best thing is to identify spam at the SMTP transmission stage
> and to refuse it, which *does* tell the sender of mis-identified
> legitimate email that it has not been delivered.
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