No one is forced to use any DNS block list. Therefor, any harmful
effects of the DNSBL can only be because they are the best
alternative currently available. The response I would prefer to see
is the building of a better block list system to address any
shortcomings of the current DNSBL systems.
One particular issue brought up in the draft is that the current
block lists don't adequately deal with bot-nets. If the block list
could respond fast enough, each individual bot could be blocked
before it could deliver a substantial amount of spam. And if used in
conjunction with grey listing the entire spam run could be stopped
without inducing collateral damage.
-- Dan Oetting
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