Spam Terrier brings comprehensive antispam protection to users of varying computer skills. It comes free and doesn't stress even a low-end computer. Effortlessly integrating into Outlook and Outlook Express, the program provides a wide array of filtering options, including self-learning Bayesian-based filter that can be trained to individual preferences. Other filtering criteria include senders' white- and blacklists, customized message content that will be analyzed when the mail arrives. On-demand spam scan allows for scanning of already received messages throughout any folder. These, plus a handful of other innovative features make Spam Terrier the ideal antispam solution.