Joey wrote:
I agree with you and that may be the case for us as well in respect to US
spam.
I can only tell you that in 4 days we have blocked at the firewall level (
on only 1 server )
161,166 connections from Poland
1,184,747 connections from Turkey
418,162 connections from Russia
53,656 connections from Czech
1,613,636 connections from Asia
129,428 connections from UK
I was in the situation, where mail from MY server was rejected by the
server, which is blocked BY ME (with spamhaus). Scenario was: they check
existence of sender email address (technically by doing MAIL FROM and
then RCPT TO), but by server blocked them on the RCPT TO stage, so they
think that sender isn't exist and reject my mail.
So, you can not send anything to such 'checking' servers - they can not
connect to you to check; and, some connections may were same sender
existence check attempts.
And, as the whole - the corellation between connections and (spam)
messages is not so simple, to block spam by blocking connections.
