revjim.net

I'm looking to implement some sort of SPAM management. I'd like to be able to use the Bayes algorithm in order to determine what is and what isn't SPAM. This means I'd like to be able to have a folder (MailDir format please) called "caughtspam" or something similar. When a message is considered SPAM, it will go in that folder. All other mail will be delivered normally. If a user finds a piece of mail that is SPAM that wasn't classified as such, I'd like them to be able to move that message into "caughtspam" and have the SPAM filter analyze it in order to better train itself for the future. I'd also like the SPAM filter to be able to analyze all the other folders a user has to determine what isn't SPAM, on a nightly, or so, basis. However, I don't really want to use the INBOX for this as, it might actually contain some SPAM that didn't get caught. Especially at first. So, it might be beneficial to have a folder for INBOX, a folder for SPAM, and a folder for "maybes" or stuff that was too close to tell. Also, for POP users, I'd like to have the ability to merely FLAG the message as SPAM as opposed to putting it in another folder. In these cases, perhaps some sort of "this-is-spam" email address that they can forward SPAM messages to in order to train the system. Any suggestions?

I'd also like to be able to offer mail confirmation (you know where, if a user gets mail from someone she's never gotten mail from before, the sender will be asked to reply to confirm that they are indeed human) to users who would prefer even BETTER SPAM protection at the cost of flexibility in their mail system. But this desire is secondary to the above.