On Wed, 24 Aug 2011 20:04:28 +0000 (UTC) Walter Hurry wrote: > I have been using SA on my home box for a couple of months now; > really more as a learning exercise than anything else. Having noticed > that my Bayes is almost always right, I tried uncommenting > > Mail::SpamAssassin::Plugin::Shortcircuit > and > shortcircuit BAYES_99 spam > > in my local.cf. It seems to be working well, but is there a downside?
I wouldn't use short-circuiting on a home computer, unless it really can't cope with the throughput and even then I'd start by short-circuiting ham. If you want to place more reliance on BAYES then change it's scores. If you short-circuit on BAYES_99 you lose the benefit of negative scoring rules. You also lose one of SA's best features: the ability to distinguish between certain spam and probable spam, and that makes it much harder to spot any FPs.