Spam Challenge-Response system
jessie at confettiantiques.com
Thu Apr 9 14:54:29 MDT 2009
On Thursday 09 April 2009 2:44:19 pm Michael Torrie wrote:
> Jessie Morris wrote:
> > Postgrey was almost exactly what I was looking for. :) With Postgrey it's
> > almost completely automatic.
> > For anybody else looking for this kind of system, here's a pretty good
> > link talking about how to do it.
> > http://www.roedie.nl/wiki/index.php/Spam_Filtering_With_Postfix
> Greylisting has worked very well for me. In fact I get so few spam
> message through that I can't even train dspam.
> I have noticed, though, that over the last year or two more and more
> spam bots are calling back and delivering their spam. Maybe we need to
> combine greylisting with some kind of tarpit idea. Where we hold onto
> their connection for 30-60 seconds before saying, "try back later."
> That just might raise the cost for spammers just a little bit. A
> never-ending arms race. That's for sure.
> PLUG: http://plug.org, #utah on irc.freenode.net
> Unsubscribe: http://plug.org/mailman/options/plug
> Don't fear the penguin.
Ha. Lets do it. I'd love to be able to get back at all those da*n spammers. I
get soooooo much spam. It's ridiculous. Anyways, is there any easy way to do
this with Postfix?
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