From: Henrik K on
On Fri, Feb 05, 2010 at 03:46:16PM +0200, Henrik K wrote:
>
> Hello,
>
> There was a thread earlier about whitelisting known correspondents.
>
> I have now written a tool for my pleasure, but feel free to check it out.
>
> http://mailfud.org/postpals/

Now that I've had a chance to run it for months, here's a week worth of
stats for anyone interested.

Msgs total ham 72000
Msgs total spam 3500
RELAY24 ham 11600 spam 100 (15% of msgs, 0.9%/0.13% spam)
RELAY ham 8300 spam 10 (11% of msgs, 0.1%/0.013% spam)
RCPT ham 1370 spam 0 (2% of msgs, 0% spam)
ANY ham 21300 spam 100 (28% of msgs, 0.5%/0.13% spam)

So 28% of all msgs hit some rule, with very little spam seen.