[Greylist-users] Using a spam-trap e-mail address with greylist

Christopher Baker chris at chrisbaker.net
Sat Mar 10 05:56:51 PST 2007

> At 05:05 PM 1/25/07, Dennis Wynne wrote:
> >Say I make up a new, bogus user for our domain and post it on various web
> >pages, online sites, newsgroups, etc but never use it for mail. Then I would
> >automatically black list any IP that sends an e-mail to that user since it
> >has to be from a spammer.
> OpenBSD calls this "Greytrapping"; included since 3.7 (May 2005).
> http://www.openbsd.org/cgi-bin/man.cgi?query=spamd&sektion=8
> http://www.openbsd.org/cgi-bin/man.cgi?query=spamdb&sektion=8
> When a host that is currently greylisted attempts to send mail to a 
> spamtrap address, it is blacklisted for 24 hours 

Just 24 hours? You could make it more like a month.


Chris Baker -- Austin, Texas
chris at chrisbaker.net, chrisbaker at iname.com
"When you stop growing, you start dying."

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