Re: Bounce email

[Danny Sauer <sauer@cloudmaster.com>]

On Tue, Jun 13, 2000 at 02:26:46PM -0500, John Corey wrote:
> Leon Jackson wrote:
> > Here's something that just popped into my head from nowhere.
> > Is it possible to make it look like an email bounced after it's already
> > been delivered to you.
> > My reason for this is I don't ever reply to spam but just add a filter. I
> > figure though if and email gets bounced as undeliverable my email might be
> > removed from the spammers list.
> > Is this idea a pipe full of crack or is it possible to do this.
> 
> That assumes the spammers put legitimate addresses in their from line or
> in the body (though most use anon web mail addresses like yahoo,
> hotmail, etc).  There was that article on Slashdot a few days back of an
> alledge cracking into some spammers' Windows computers.  This spam
> company sent millions of emails every week and didn't put legitimate
> addresses in their From lines.

All you'd have to do is send an "undeliverable" message after they send the
part of the message that matches your filter.  Doesn't the order go
HELO
MESG FROM
RCPT TO
DATA
or something like that?  You should be able to send something indicating that
your username is "bad" based on their entries in the RCPT fields and their
origin without too much difficulty.  'Course, if you're using sendmail instead
of the "better in nearly every way IMHO" postfix, it'll take you a couple of
years to come up with the rules to do it, right? :)

--Danny, not contributing much useful info

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