On Mon, 13 Jul 2009 17:21:36 +0100 Ned Slider <n...@unixmail.co.uk> wrote:
> I do a very similar thing and see very similar results to yours. > > I use zen.spamhaus to block at the smtp level and then run all > headers through sbl-xbl for a further few points. As already > mentioned elsewhere in this thread, it will occasionally fire against > ham but I've only noticed that from senders to mailing lists who > originate from extremely spammy ISPs (ie, they hit plenty of other > DNSBLs too). > On Mon, 13 Jul 2009 17:48:17 +0100 Justin Mason <j...@jmason.org> wrote: > we used to do it this way, but the FPs are (surprisingly) high due to > dynamic-address-pool churn. That kind of thing doesn't happen much with UK DSL. I notice Ned Slider has a .co.uk address, so I think it probably does matter where your mail comes from. > compare: > OVERALL% SPAM% HAM% S/O RANK SCORE NAME > 5.100 10.1740 0.0200 0.998 0.65 0.01 T_RCVD_IN_XBL (with > trusted-networks) > 5.417 10.6074 0.2203 0.980 0.18 0.00 RCVD_IN_XBL (with > all nets) Even on those figures, I still think it's worth scoring at the 0.5 to 1 point level.
