"Loren Wilton" <[EMAIL PROTECTED]> writes: > I dn't believe anyone has had a chance to run a mass-test on a rule > for it. But this subject came up last week or so, and the consensus > at the time was that the most common forms of that in spam were also > completely valid in normal email.
First, such a rule is going to wreck havoc for anything using POP3 and potentially filtering or re-filtering at a later time, so it's a bad idea for that reason. I had to exempt X-UIDL from a rule just to prevent misfires in corpora. I don't use POP at all, so my FP rate is not too high, but it is still significant. 3 out of 47290 ham (0.006% of ham) 55 out of 78149 spam (0.070% of spam) 0.917 S/O ratio The hit rate is very low and the S/O ratio non-great. Seems like a bad rule. -- Daniel Quinlan http://www.pathname.com/~quinlan/
