I've been trying to scrounge up the time to build one of these...

http://lawmonkey.org/anti-spam.html

combination of bayesian and razor on openbsd acting as an MTA.

About 1/2 our staff installed freeware screensaver (read: gator) on their
computers and our spam has gone through the roof.



-----Original Message-----
From: John Neiberger [mailto:[EMAIL PROTECTED]
Sent: Wednesday, September 03, 2003 2:36 PM
To: [EMAIL PROTECTED]
Subject: RE: OT Gibberish in email [7:74740]


Reimer, Fred wrote:
> 
> It is an attempt by the SPAMers to avoid SPAM software that
> takes a hash of
> the SPAM and blocks SPAM on machines based on these hash
> values.  There are
> some anti-SPAM "solutions" out there that basically relies on
> the users to
> mark email as SPAM.  When they do, the client machines send the
> hash of the
> SPAM up to the service provider, which shares these hashes with
> all other
> subscribers.  So, if the same exact SPAM is sent to another
> user it would
> automatically get blocked.  These random characters change the
> hash value,
> and hence this method of blocking SPAM is ineffective.
> 
> Use a Bayesian filter program for your SPAM.  I have 3755
> emails in my "Junk
> Mail" folder now, and I empty it out last on July 18th.  Check
> out
> www.Junk-Out.com.
> 
> Fred Reimer - CCNA

Someone should develop a SPAM filter that looks for certain types of
randomness within a message. This would be difficult, but certainly not
impossible. You'd have to be pretty creative about it but it ought to be
possible to devise an algorithm that could detect that sort of random
line--often found in the subject line--and flag it as SPAM.

I haven't heard of a Bayesian filter before. I'm going to go find out more
about that right now.

John
**Please support GroupStudy by purchasing from the GroupStudy Store:
http://shop.groupstudy.com
FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html




Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=74752&t=74740
--------------------------------------------------
**Please support GroupStudy by purchasing from the GroupStudy Store:
http://shop.groupstudy.com
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html

Reply via email to