Also, since upgrading to 6.5.1, and everything seeming to work, I have a new stat, "SMTP.kSpam.Bayesian.CopiedAndDenied = 75" I guess this is how many emails have been blocked.
> sh stat smtp.kspam.*
SMTP.kSpam.Bayesian.Boundary = 90%
SMTP.kSpam.Bayesian.CopiedAndDenied = 75
SMTP.kSpam.Bayesian.Filter = On
SMTP.kSpam.Bayesian.Mark = On
SMTP.kSpam.Bayesian.Prep = Off
SMTP.kSpam.Bayesian.Prep_2 = Off
SMTP.kSpam.Bayesian.Ratio = 10
SMTP.kSpam.Conf.CopyDB = mailspam.nsf
SMTP.kSpam.Conf.Debug = Off
SMTP.kSpam.Conf.DefaultAction = Deny
SMTP.kSpam.Conf.FilterFromInt = Off
SMTP.kSpam.Conf.Mark = Off
SMTP.kSpam.Conf.MaxNumbersInFrom = 0
SMTP.kSpam.Conf.MinFromLength = 0
SMTP.kSpam.Conf.Reload = On
SMTP.kSpam.Version = 1.39 beta 2
16 statistics found