In response to most spams, I immediately block the entire Class C
set of netnumbers from which the spam originated. Since I can,
I block ALL packets, which I just throw away, causing the offending
site to timeout, rather than gettting a service refused response.
This blocks DNS lookup, Finger, SMTP, etc. I believe that
raising the pain threshold for sites that harbor spammers by making
their services somewhat less useful for their legit customers (if any)
is a useful and legitimate response.
I also think that if each of us send a single, lengthy message to
the sites involved for each spam received, the return traffic should
also increase the pain on the source and its providers.
Lou
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