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Posted to users@spamassassin.apache.org by Justin Mason <jm...@jmason.org> on 2005/02/18 20:07:48 UTC

Re: alternatives

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Well, let us put the *other* side of the story ;)
See http://wiki.apache.org/spamassassin/WhyUseRules .

- --j.

Gray, Richard writes:
> Hi Ronan, 
> 
> I myself have been looking at this for the company I work for, and may
> be able to provide some insight. 
> 
> DSPAM is an entirely statistical filter, so is similar in behaviour to
> the BAYES part of SA. It implements a number of more sophisticated
> algorithms and strategies for recognising spam. It also has some nice
> touches for feedback (because it is virtually essential that you tell
> DSPAM when it gets it wrong)
> 
> SA relies primarily on its regexp matching (with lookups etc). 
> 
> So, each spam detector works in a very different way. One of the options
> we are considering here is to use both SA and DSPAM together. There are
> a few HOWTO's around on how to do this, (I've seen a good one using
> exim, but can't find the link atm) or you could probably write a plugin
> to SA 3.0 to call DSPAM. 
> 
> Basically, you need statistical filters because spammers are tricksy,
> but you also need pattern matching, because when you spot something odd,
> you want to be able to start catching it immediately. Using a
> two-pronged attack also allows you to use SA as a detector for training
> the DSPAM filter until it gets good.
> 
> Hope this helps, 
> 
> Richard
> 
> -----Original Message-----
> From: R McGlue [mailto:r.mcglue@qub.ac.uk] 
> Sent: 18 February 2005 09:58
> To: spamassassin-users@incubator.apache.org
> Subject: alternatives
> 
> I am aware that this is a SA list.. and my posting my generate some
> flames...
> but can anyone perhaps highlight some of the main plus points of SA over
> .eg. Dspam??
> 
> One of my objectives here in work is to (even though we are enjoying the
> best anti spam experience in recent history since i upgraded and
> twaeaked SA) my boss' are looking for more... not in itself a bad thing.
> 
> The see the high cpu and memory overhead of SA as a problem so I have
> unearthed Dspam and am looking into it now. They give a short
> desciprition on their website as to how it compares ( albeit favourably
> ) to SA, perhaps this might be useful for SA??
> 
> thanks
> 
> ronan
> 
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