procmail
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Re: Just received

1998-04-26 10:00:09
On Sun, 26 Apr 1998, era eriksson wrote:
:As a general comment, the quickest way to reduce your spam is to
:install one of the existing antispam packages. If you want to roll
:your own, perhaps you should look at the code of Spam Bouncer,
:Junkfilter and the others. <http://www.iki.fi/~era/procmail/links.html>
:
I wish I could... spam filtering packages do not work on my shell since me
ISP (college) has certain problems with both perl and also, since this is
a DEC unix system, it strangly does not allow piping, which means I cannot
use some packages where this is required:(

:
:You can have a list of suspicious account names. The prototypical one
:is "friend(_at_)public(_dot_)com" but a lot of people are filtering on "you",
:"all", "success", "money" and a number of other "spook words". (My
:personal favorite is anything "4u". Pretty revolting, huh?)
:
: >> Subject: Certified mail
:

How do I do this?  I have looked at a number of procmail how tos, and
found no information about word lists.  And my ISP seems to be having a
problem with its man pages.. they are all (most anyways) not accessible
which is maddening...

:You could try to create a list of "spook words" for the Subject: line
:as well. These should not be used on their own, except perhaps for
:classing mail as suspicious (you could save suspicious mail to a
:different folder to keep the unwanted stuff out of your main mailbox,
:but there will obviously be false matches you want to fish out of the
:tank every once in a while). For improved accuracy, you could use
:scoring to classify mail as suspicious only when two or more of the
:spook words and phrases match. (You could then add e.g. hotmail.com
:and aol.com as fairly accurate address field spook phrases and still
:not get many false positives even if you have friends with Hotmail or
:AOL accounts -- they would get caught as suspicious only if their mail
:also matches some other suspiciousness criteria. Of course, you could
:also whitelist your friends, i.e. have a list of addresses which, when
:matched, bypass your normal spam filtering.)

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