[100006] in RedHat Linux List
Re: SPAM headers.
daemon@ATHENA.MIT.EDU (Ramon Gandia)
Wed Nov 18 03:07:41 1998
Date: Tue, 17 Nov 1998 23:03:16 -0900
From: Ramon Gandia <rfg@nook.net>
To: dfox@belvdere.vip.best.com, redhat-list@redhat.com
Resent-From: redhat-list@redhat.com
Reply-To: redhat-list@redhat.com
"David E. Fox" wrote:
>
> Look at procmail first, since it's already there on Redhat systems.
> Also check some of the neater spam-fighting things in sendmail
> rulesets and so forth, where you can deny mail from whole
> domains, sending back messages like "550 get out of here
> spammer" etc. The problem does remain, conceivably since
> lots of SPAM is forged, that there won't be a bona fide
> address to send back anything to.
I think filtering by domain would be a never ending
administration task, although I suppose you can buy lists
of spam sites, much like CyberPatrol markets list of X rated
sites etc.
My take on this is that it would be very nice to follow
my 90-10 rule: 90% of the Spam is filtered with only 10%
of the effort.
With the 90% onslaught filtered out, the remaining 10% can
be zapped with the delete button.
This is the reason I saw the difference between the To: and
the Delivered To: header. Maybe "Delivered-To:" is a Qmail
thing. But next time you get a Spam message, and it says
it is for friend@friendly.com, but was actually delivered to
YOU dfox@belvedere.vip.best.com, then I think you need to look
at the mail header and see where your real address and the
To: address differ.
This is my point, in that I think it would be quite simple to
implement this rule.
I would not want Spam to bounce back to the sender. If it
does, they would get savvy. If it is a bogus address, then
the bounces are going to bounce ad nauseam. I think it is
best to treat it like all junk mail: /dev/null.
But I will look at procmail and see what it can do for me. And
see if it works with Qmail.
--
Ramon Gandia ==== Sysadmin ==== Nook Net ==== http://www.nook.net
285 West First Avenue rfg@nook.net
P.O. Box 970 tel. 907-443-7575
Nome, Alaska 99762-0970 ======================= fax. 907-443-2487
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