mx2.freebsd.org in SORBS, AGAIN!

Ted Mittelstaedt tedm at toybox.placo.com
Tue Feb 15 11:58:03 GMT 2005



> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org
> [mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Adi Pircalabu
> Sent: Tuesday, February 15, 2005 2:15 AM
> To: freebsd-questions at freebsd.org
> Subject: Re: mx2.freebsd.org in SORBS, AGAIN!
>
>
> On Sat, 12 Feb 2005 03:18:17 -0800
> "Ted Mittelstaedt" <tedm at toybox.placo.com> wrote:
>
> > A spammer is forging several of SORBS spamtrap e-mail
> > addresses on their outgoing spams.  The spams hit freebsd.org
> > which of course is bouncing them back to the sender, which
> > is in this case is the spamtrap e-mail addresses.  This
> > triggers the SORBS autolisting.
>
> Well, in this case, how about avoiding bounces completely?
> Bouncing to a
> forged sender address is not the most clever (re)action these days.
> Spammers and viruses abuse this succesfully (you pointed this very
> well).
> I belive that deleting (maybe dropping, tarpitting or deffering -
> adjust to taste) these bad bad messages is a better idea.
>

Once you can figure out how to program the FreeBSD mailservers to
determine exactly which incoming message is spam that needs to be
dropped, and
which is a legitimate message that is just perhaps misspelled and
needs to be returned to the sender, your life wouldn't be worth a
plugged nickel because every spammer on the face of the Earth would
be gunning for you. ;-)

Better yet is figuring out how to program a mailserver to determine which
incoming mail senders address is the forged one, and which is the real
one.
A forgery wouldn't be much good if they forged an invalid e-mail
address, now would it? ;-)

Ted



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