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Re: challenge-response filtering?

Sun, 14 May 2006 08:14:21 +0100 from Roy Schestowitz 
<newsgroups@xxxxxxxxxxxxxxx>:
> __/ [ Stan Brown ] on Sunday 14 May 2006 00:26 \__
> 
> > Fri, 12 May 2006 12:59:38 +0100 from Roy Schestowitz
> > <newsgroups@xxxxxxxxxxxxxxx>:
> >> Apache comes with a package/module called BoxTrapper which I have used
> >> happily (not necessarily to the happiness of others) for almost a year. It
> >> is of course free.
> > 
> > And worth less than it costs.
> > 
> > I know nothing about that particular package, but challenge-response
> > systems are not just a flawed implementation, they are a bad idea
> > from the get-go.
> > 
> > http://linuxmafia.com/faq/Mail/challenge-response.html
> 
> I  put  SpamAssassin  on top of BoxTrapper. This reduces  the  load,  i.e.
> intercepts  messages  effectively /before/ a request for  verification  is
> sent. Moreover, I only enabled BoxTrappers on two accounts.
> 
> As  a  side note, did you know that half of the global traffic of spam  is
> estimated  to  have been sent from compromised Windows boxes? I find  that
> outrageous.

Neither of those comments has anything AT ALL to do with the inherent 
brokenness of challenge-response schemes.

-- 
Stan Brown, Oak Road Systems, Tompkins County, New York, USA
                                  http://OakRoadSystems.com/

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