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From: Mark D Smith <msmith@revolution.3-cities.com>
Message-Id: <199705220438.VAA25133@revolution.3-cities.com>
Subject: spam/nslookup question
To: freebsd-questions@freebsd.org
Date: Wed, 21 May 1997 21:38:23 -0700 (PDT)
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Greetings,

I'm currently being spammed from a site that doesn't aparently have a
DNS entry.  This site [205.199.212.21] reports that it's name is
relay2.ispam.net.  Looking up ispam.net I get that it's run by 
the *ssh*les known as cyberpromo.  

Question is, how can they get away with not having a DNS entry but
still using an IP address?

Mark