> - makes it harder for spammers to do their work. however, tmda isn't
well, smtp being store and forward, what is an smtp proxy? :) that's
probably, the most effective way to stop spam in the long-term is to
configure your email server to use the SPEWS blacklist and a good open
SPEWS: to force ISPs to take action against spammers
SPEWS /will/ list entire ISP netblocks /if/ the ISP consistently
ignores/fails to take action on abuse reports over the course of
several months. however, they're pretty quick at delisting once action
is taken. in the long-term, and in absence of global and effective
anti-UCE regulations, it's the only realistic way to get to a spam
Open relay lists: to protect against relays obviously.

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