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.
-D
--
In the way of righteousness there is life;
along that path is immortality.
Proverbs 12:28
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