On Mon, 2004-09-13 at 20:41, Jonathan Gardner wrote:
When I say "cost" I mean "cost". Everything the spammer has to do to send a
piece of spam nowadays is a cost. These costs don't have a monetary value
in many cases because they are paid in time, risk of getting caught, cost
in discovering people who wholesale these machines, cost of communicating
and verifying yourself as someone they would like to do business with, and
then the cost of losing these zombies because using them will expose the
zombies or get their subnet listed on blacklists.
Most spam from zombies is already blocked by lists such as DSBL, CBL or
a DUL-type list; spammers don't seem to be too worried about this though
because a significant proportion of their target market (i.e. idiots
IMHO) don't use the lists.
Paul.
--
Paul Howarth <paul(_at_)city-fan(_dot_)org>