Graham's spam filter

Fernando Pereira pereira at cis.upenn.edu
Tue Aug 27 23:26:36 CEST 2002


On 8/27/02 2:42 PM, in article
mailman.1030473820.32222.python-list at python.org, "Mark McEahern"
<marklists at mceahern.com> wrote:
> Thanks.  What I was looking for was some elaboration on why he said the
> whitelist technique was evil.
Easy. It shifts the cost of defending X against spam to those Y who want to
contact X legitimately. Sure, a small cost per individual Y, but if
aggregated over all Ys, probably a significant fraction of what handling
spam would cost X. 

-- F




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