SpamWeed's refined Bayesian filter is very intelligent when it comes to tell which email is good and which is spam. As the spam filter is pre-trained, it works very effectively out-of-the-box. At the beginning, SpamWeed may make a few mistakes. If it blocks a good email, you can simply move it to "good mail box". By doing so, SpamWeed learns and improves future filtering. The refined algorithm makes the spam filter very sensitive to training and ususally after a few days' use, it can work completely to your satisfaction.
Sole Whitelist Mode
Some users are interested in only receiving emails from their whitelist contacts while blocking all other emails. By turning on "Only Receive Emails from Whitelisted Senders", SpamWeed allows you to do so.