[Spambayes] UN SPAM AN EMail

[skip at pobox.com]

Have you tried dragging it to your ham (good email) folder?  If something
which used to always be ok suddenly begins getting classified as spam or
unsure, a couple possibilities for the sudden change come to mind):

    * something in the headers (perhaps an IP address or domain name) turned
      up in other mails you classified as spam.  New mails from your trusted
      correspondent now have some spammy tokens which weren't previously
      spammy. 

    * pilot error.  I make this mistake periodically, classifying a message
      as ham (spam) when it should have been classified as spam (ham).

In the first case, classifying your mail should help to minimize
misclassification.  In the second case it might be easier to simply clear
out your training set and start from scratch.

-- 
Skip Montanaro - skip at pobox.com - http://www.smontanaro.net/