nanog mailing list archives

Re: Some odd harvesting going on?


From: "D'Arcy J.M. Cain" <darcy () druid net>
Date: Wed, 8 Oct 2008 10:51:14 -0400

On Wed, 8 Oct 2008 07:21:22 -0400
Rich Kulawiec <rsk () gsp org> wrote:
This doesn't look to me like phishing (although I can see the
similarities); it looks like yet another severely clueless site engaged
in challenge-response spamming. (C-R has long since been not only
completely discredited as an anti-spam tactic, but has been recognized
as a spam vector.  Hosts emitting it are subject to blacklisting,
in the same way and for much the same reason that hosts emitting
backscatter/outscatter are.)

C-R *is* spam.  Interestingly, proponents use the same argument for it
that spammers do.  It works for them.  Spammers feel that .0001%
response is reason enough to load the rest of us with with work for no
pay.  Proponents of C-R feel that reducing their spam load justifies
having the rest of us work as their spam filter for free.  It's the "I
got mine, Jack" mentality which is sadly way too ubiquitous.

Personally I think that the answer to this problem is to simply reply
automatically to these challenges positively no matter what.  Puts the
job of filtering spam back on the first person.

-- 
D'Arcy J.M. Cain <darcy () druid net>         |  Democracy is three wolves
http://www.druid.net/darcy/                |  and a sheep voting on
+1 416 425 1212     (DoD#0082)    (eNTP)   |  what's for dinner.


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