[Spambayes] test sets?
Tim Peters
tim.one@comcast.net
Sun, 08 Sep 2002 16:13:40 -0400
[Greg Ward]
> Case of headers is definitely helpful. SpamAssassin has a rule for it
> -- if you have headers like "DATE" or "SUBJECT", you get a few more
> points.
Across my data, all-caps DATE, SUBJECT, TO, etc indeed appear only in the
spam collections. OTOH, they don't appear often -- less than 1% of spam
messages have at least one of these all-cap header lines. But when I'm
fighting what are now sub-1% f-n rates, even rare clues can help!