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On Tuesday 02 July 2002 08:10 am, Derrick 'dman' Hudson wrote:
> On Tue, Jul 02, 2002 at 09:52:01AM +0100, Matt Sergeant wrote:
> | Meino Christian Cramer wrote:
> | > is it possible (and how) to configure spamd/sa-exim that way, that
> | > the spammer gets a return code, which says, that my email address
> | > is permanently not reachable (was it return code 550 ??? I am not
> | > sure...)
> |
> | Do you really think they'll care? These spammers send out 80+
> | million emails at a time, and they fully expect to get lots of
> | bounces back, and ignore them.
> |
> | Personally I think you're wasting your bandwidth.
>
> Actually, it's not his own bandwidth he's wasting. It's the bandwidth
> of the machine relaying the message to him. The key is that the
> sa-exim system does _not_ generate and try to deliver a bounce
> message. It merely refuses to accept the message in the first place.
> That puts the responsibility of bouncing the message on the shoulders
> of the relaying MTA. If that MTA is the spammer itself, it will
> definitely get the reject notification. If it isn't, it provides
> (some) additional incentive for that site to be more proactive in
> stopping the spam problem. From the sa-exim user's perspective it is
> a win-win situation :-). This is the reason for running SA at SMTP
> time rather than waiting until later. Later you can't do much about
> it since the return address is (probably) forged.
OK, so how does one go about doing it? I'm using postfix, btw. Can it be
done with postfix?
- --
Mike Diehl.
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