Dan Hollis spamtrap71892316634 at ANIME.NET
Wed Feb 25 19:13:42 GMT 2004

On Wed, 25 Feb 2004, Michele Neylon :: Blacknight Solutions wrote:
> > Just because its not perfect doesnt mean its useless.
> Useless = impractical

Hardly. People *already use it* in beta versions of spamassassin.

Whether you like it or not, this type of filtering is *already being used*,
and will only become more widely used.

No, it's not perfect. But then no single filtering technique is. But it is
very, very effective.

> > Its certainly better than a lot of the filtering techniques out there, and
> > should be a lot more effective.
> > Reverse lookups for #3? No. *forward* lookups. Eg
> > http://www.grblsndktqer.biz/ in the body of the spam resolves to an IP in
> > china. So you block it.
> A lot would depend on what you use for the reverse lookups ie. mapping the
> domain to an IP and then to a geographic location.
> Although there are some good IP - geo databases out there certain problems
> still exist. For example UTV dialup users in the republic were being classed
> as UK.

I use kr.rbl.cluecentral.net, cn.rbl.cluecentral.net

While it has had the occasional false negative in the past, it hasnt
classed anyone a false positive afaik. Unless you have specific examples?


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