spf-discuss
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RE: Sendmail white paper

2004-12-07 11:44:23
On Tue, 7 Dec 2004, David Woodhouse wrote:

 To me, SPF is not about stopping spam,
it's about stopping spam that purports to come from my domain(s).

But SPF doesn't achieve that, because it still allows:
      MAIL FROM:<SRS0=xx=yy=kitterman(_dot_)com=spf2(_at_)forwarder(_dot_)org>
      From: Scott Kitterman <spf2(_at_)kitterman(_dot_)com>

99.5% of recipients really won't be able to tell the difference. 

Well now, then they are no worse off than before SPF.  And when
someone with a clue finally configures their MTA properly so it
doesn't accept forwards from just anyone, they will be better off.
And in the meantime, with 40000 spams/worms/forgeries a day, I have yet
to see a single one using a bogus SRS forwarder.  So they are better
off even now.

-- 
              Stuart D. Gathman <stuart(_at_)bmsi(_dot_)com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flamis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.


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