Milter-greylist

Emmanuel Dreyfus <manu@...> wrote:
> Dan Hollis <goemon@...> wrote:
> > I wonder if this won't cause scalability problems in the future on very
> > large systems (eg 10,000's of users). Multiply by the unique senders and
> > unique IPs...
> If you have such a big system, then you won't object throwing a few more
> GB of RAM to fix that problem :)

I don't mean ram, but rather that the serial db lookups could end up 
taking a lot of cpu.

On-disk database would alleviate both memory pressure and lookups (via 
keying).

-Dan