On 16/03/06, John W. Baxter <[EMAIL PROTECTED]> wrote:
> On 3/13/06 7:04 AM, "Peter Bowyer" <[EMAIL PROTECTED]> wrote:
>
> > On 13/03/06, Thad Bryson <[EMAIL PROTECTED]> wrote:
> >> This is the contents of /etc/vfilters/velocenet.com:
> >>
> > <snip>
> >
> >> or $message_body contains "cum"
> > ...
> >> or $message_headers contains "sex"
> >
> >
> > Have a think for a moment, how many legitimate messages will this match?
> >
> > "Cumulative statistics for the county of Essex"
>
> Our local (and rather small) telephone directory reveals a Sexauer and
> several Sexton names.  Oops, I missed the Sextro.  Those are likely to show
> up in $message_headers and $message_bodies from time to time.  Readily
> available names, so I'm not revealing anything (and of course a sexton is
> also a sort of church caretaker/gardener/gravedigger).

And there's the well-known problem from the early days of keyword
filtering known as the 'Scunthorpe Effect'.

Peter


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Peter Bowyer
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