JunkIt is a drag-and-drop junk-mail filter for Mail.

Even with the best training, the default junk-mail filter in Mail can leave you with hundreds of unwanted emails. And spam-filtering programs can overwhelm you with too many features to make them work. JunkIt is a simple, drag-and-drop junk-mail filter for Mail with extra features for pro users, such as notifications, reverse highlighting, and custom greetings.