[svlug] Recommendations for whitelist spam filtering

[John Conover]

Marc MERLIN writes:
> On Mon, Jul 18, 2005 at 05:14:00PM -0700, Jeremy Zawodny wrote:
> > William R Ward wrote:
> > > I use SpamAssassin and although I get a certain amount of false
> > > negatives I'm content with it.  My wife on the other hand is not.  I
> > > need to provide her with a spam filter that will block all spam.  The
> > > only way I know to do this is with a whitelist based filter, so that
> > > the first time someone sends her mail it requires them to jump through
> > > some kind of hoop before they can get through.
> > 
> > I've found greylisting (with postgrey + postfix) to be a VERY good first 
> > line of defense.
> 
> and if you use/prefer exim, you can have adaptive greylisting (i.e. only
> delay mail you are unsure a bout after seeing the SA score)
> http://marc.merlins.org/linux/exim/sa.html
>

And, if you want to do it in procmail:

    http://www.johncon.com/john/StochasticUCEDetection/

and look in the cookbook section at the bottom.

    John

-- 

John Conover, conover at rahul.net, http://www.johncon.com/