SpamArrow is a simple and stable anti spam software to effectively block any unwanted spam emails with near zero false positives. It uses the famous SpamAssassin engine and the Bayesian filtering to automatically classify incoming emails as spam or non-spam. This anti spam software is a great add-on for Outlook and Outlook Express by automatically creating integrated spam-fighting toolbar buttons and a spam folder to collect all emails identified as spam. Unlike most spam filter software products usually do, SpamArrow will never modify your original email message and never add message rules for Outlook or Outlook Express.