[Nelug] Spam Filtering

[CBates]

Thanks for that Martin,

I'll take a look at it shortly...

Craig.

 --- Martin Ward <Martin.Ward at durham.ac.uk> wrote: > 
> I have just implemented a perl module and some
> supporting scripts
> for spam filtering. The module is called
> Mail::SpamFilter
> and is available from my web pages:
> 
> http://www.cse.dmu.ac.uk/~mward/martin/software
> http://www.dur.ac.uk/martin.ward/martin/software
> 
> The module presents a uniform interface for passing
> a message through each 
> filter and determining which filters consider the
> message to be spam
> 
> The spamcheck script passes a copy of the given
> message to each filter and 
> counts how many filters consider it to be spam. It
> adds a X-SPAM-Votes: header 
> with the total.
> 
> I currently delete everything with three or more
> votes and quarantine 
> everything with one or two votes using these
> procmail rules:
> 
> 
> :0fw: spamcheck.lock
> | spamcheck
> 
> # Record the votes in the procmail log file:
> :0
> * ^X-Spam-Votes: \/.*$
> { LOG="Spam-Votes: ${MATCH}" }
> 
> # Junk anything that 3 or more scanners give a
> positive result on.
> 
> :0
> * ^X-Spam-Votes: [3456789]
> /dev/null
> 
> # Filter anything which any scanner considers to be
> spam:
> 
> :0
> * ^X-Spam-Votes: [12]
> SPAM
> 
> 
> The isspam and notspam scripts can be used to train
> your filters. Any spam 
> message which is missed by any filter can be passed
> to isspam while false 
> positives should be passed to notspam.
> 
> The spam filters it currently knows about are:
> 
>     * SpamAssassin
>     * The CRM114 Discriminator
>     * Nuclear Elephant: DSPAM
>     * WPBL - Weighted Private Block List
> 
> (See the web page for URLs  for each of these).
> 
> Let me know what you think of it!
> 
> -- 
> 			Martin
> 
> Martin.Ward at durham.ac.uk
> http://www.cse.dmu.ac.uk/~mward/ Erdos number: 4
> G.K.Chesterton web site:
> http://www.cse.dmu.ac.uk/~mward/gkc/
> 
> 
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