What is K9?
K9 is an email filtering application that works in conjunction with your regular POP3 email program and automatically classifies incoming emails as spam (junk email) or non-spam without the need for maintaining dozens of rules or constant updates to be downloaded. It uses intelligent statistical analysis that can result in extremely high accuracy over time.
The project is no longer developed. Last version, 1.28, released in April 2004, can be still downloaded from the official website.
Comments and Reviews
Said about K9 as an alternative
Mailwasher can be to aggresive