On Tue, Jul 02, 2002 at 09:52:01AM +0100, Matt Sergeant wrote:
> Meino Christian Cramer wrote:
> >Hi,
> >
> > 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.
Yes and no.
> Personally I think you're wasting your bandwidth.
Nope.
You seem to confuse generating a bounce with refusing the mail with 55x at
SMTP time.
If you refuse the mail, you are not bouncing it, the remote MTA is bouncing
it back to the sender, or in the case of a smart SMTP bulk mailer, the
sender is marked as unavailable.
It costs me 0 bandwidth to send back a 550 instead of a 220 (actually a few
more bytes to say "550 rejected reason" instead of "220 ok")
Note too that spam lists are refreshed every so often: people who send you
CDs sometimes claim "fresh addresses" or "verified addresses". Of course,
there is some marketing hype in there, but I do see the broker sending a
spam themselves and removing the people who send back a 55x, and maybe even
parsing bounces with VERP
The point being, it sure doesn't hurt to try, and if you don't read the spam
at all, you want to let the sender know in case it was an error.
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems & security ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | Finger [EMAIL PROTECTED] for PGP key
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