Hi all - about a year ago, I displayed the results of my corpus as: 331,840 nspam 2,218,218 nham
for a 6.68::1 ratio of ham-to-spam. While everything seemed to be getting scored properly, someone suggested that it is safer to have it closer to a 1-to-1 ratio, and recommended I change the ham threshold from the default 0.1 to something like -3.0. I did this and monitored the corpus monthly for a year. Here we are one year later (16 months actually) and my numbers are now: 4,472,874 nspam 4,854,055 nham for a 1.09::1 ratio. Excellent! I have now lowered the nham threshold to -1.0. - jim - PS I also turned on auto-whitelisting, which had been off before that. Not sure if that helped it regain its balance as well.
