Re: misunderstanding scale, SMTP edition

["John Levine" <johnl () iecc com>]

> OTOH, a spammer with a single /64, pretty much the absolute minimum IPv6 block, has more than 18 quintillion addresses
> and there�s not a computer on the planet with enough memory (or probably not even enough disk space) to store that
> block list.
>
> Sometimes scale is everything. host-based reputation lists scale easily to 3.2 billion host addresses. IPv6, not so 
> easily.

Quite right.  If I were a spammer or an ESP who wanted to listwash, I
could easily use a different IP addres for every single message I sent.

R's,
John