RE: [cobalt-users] configuring a Raq to block spam

["Dan Kriwitsky" <list1@xxxxxxxxxxxxxxxxxxxx>]

> I don't think there would be any difference in bandwidth. 
> With a DNSBL like ordb.org, the email comes in, then it 
> bounces back to the sender. So it uses bandwidth both ways 
> just like if you had received it.

No, the email never arrives. The rejection message comes from the
spammer's SMTP or server. You do not use your bandwidth to send the mail
back because the mail never arrives. The connection is refused before
the server can send the mail during the handshake.

-- 
Dan Kriwitsky

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