On Wed, 8 Sep 2010 16:02:10 -0700 (PDT) John Hardin <jhar...@impsec.org> wrote:
> On Wed, 8 Sep 2010, RW wrote: > > What's the reason for the age limit? > > The nature of spam (and, to a lesser degree, ham, barring major > changes like the widespread adoption of HTML email) changes over > time. A rule that hit lots of spam and had a good S/O three years ago > (e.g. the multilayer obfuscated image pharma spams that were all the > rage a few years back) might hit nearly nothing today. Would it not be sensible to keep ham for as long as necessary, and supplement the spam corpus with spamtraps?
