[Cialug] Greylisting

Academician Kula cialug@cialug.org
Tue, 14 Dec 2004 20:05:54 -0600


On Tue, Dec 14, 2004 at 07:46:31PM -0600, Tom Pohl wrote:
> I've been working with greylisting (http://greylisting.org/) with one 
> of my qmail servers and so far, I've seen a dramatic improvement in 
> spam reduction over any sort of bayesian spam filtering!  The load 
> average on my server has dropped to near 0.06 where it normally hangs 
> around 1.0-15.0 depending on who's attacking it ;)
> 
> If anyone is interested, I can share more about how it works, but the 
> websites available are probably a better teacher than I am.

Greylisting is an interesting concept and a neat tool to help prevent
spam mail. We're using it at ISU. You also learn how many people have
stupid SMTP implemenations, and how many people running those can't
answer what I would consider pretty basic e-mail administration 
questions....

-- 
Thomas L. Kula | tkula@io.com | http://www.madscientistresearch.net
Mathom House upon the Canw, The People's Republic of Ames