On Sat, 20 Oct 2001 18:42:51 -0700
Ronald F Guilmette <rfg @
> In message <11133 .
nu>, J C Lawrence
> <claw @
> If you try to differentiate mail message into two piles, just
> based on whtehre the envelope sender was null or not, then in one
> pile... the null envelope sender pile... you will have a lot of
> bounce messages, but also a fair amount of spam, and also quite a
> few auto-responses from badly implemented autoresponders. In the
> other pile... the non-null envelope sender pile... you will have a
> lot of normal messages PLUS a lot of non-deliverable bounces PLUS
> a lot of autoresponses.
Odd that. I do filter in precisely that way and while yes, I do
catch a fair bit of spam, my non-spam false positive rate is pretty
close to zero (somewhere near 0.0001%).
> Life, in practice, just isn't as simple as we would wish it to be.
J C Lawrence
---------(*) Satan, oscillate my metallic sonatas.
nu He lived as a devil, eh?
http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.