Here's an interesting spam - test-drb@ccmp.vtda.org

24 Apr 1998

On Apr 24, 11:53, Don Maslin wrote:
...
  On Fri, 24 Apr 1998, Pete Turnbull wrote:
  On Apr 24, 15:38, Hotze wrote:
  Reply to the spammers, 
 Not often a good idea, since the consensus seems to be that responses
 merely confirm that the address they used is (still) valid. 
 True!  However, in some cases e-mail with a copy of the spam or UCE to
 the postmaster of the ISP has been productive.  In the case of known spam
 centers though, it is likely a BIG mistake. 
Yes, I should perhaps have mentioned mailing to postmaster@... or abuse@...
as several responsible ISPs do follow these things up.  I've had two very
positive responses from sysadmins, one of whom tracked a spammer who was
spoofing via his system, and one from a large ISP.  In both cases, the
culprit lost their account.  It's worth looking at all the "Received: from
..." headers in such cases.
--
Pete                                            Peter Turnbull
                                                Dept. of Computer Science
                                                University of York