Re: [Asrg] Whitelists, Blacklists, Greylists, and Challenge/Response

[waltdnes@waltdnes.org]

On Sat, Apr 26, 2003 at 06:03:22PM -0700, J C Lawrence wrote
> On Sat, 26 Apr 2003 16:38:13 -0400 
> waltdnes  <waltdnes@waltdnes.org> wrote:
> 
> >   - The 550 message (with very few exceptions) contains "If yours was
> > a legitimate email, see http://..."; which points to a webpage of mine
> > that lists a temporary unfiltered email address that I create
> > especially for the purpose of bypassing my filters.  Most spammers
> > don't read their reject messages; in fact the ones who send via
> > compromised/hijacked 3rd-party machines don't even see the reject
> > message.
> 
> This relies on humans reading bounce messages, something that is already
> known to be vanishingly rare to almost non-existent.  In my particular
> case I read and handle my bounce message folder every month or three.

  If it's a person who's trying to contact me, they can read the reject
message.  If it's Topica or Experian or some other so-called "legitimate
commercial email marketer" who ignore 550's, or a spammer who's sending
via a trojaned machine and can't see the 550 response, that's OK too.

-- 
Walter Dnes <waltdnes@waltdnes.org>
Email users are divided into two classes;
1) Those who have effective spam-blocking
2) Those who wish they did
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