Spam filtering can be a hard work. Defend your inbox against and compare your score with others. You are a SPAM filter and your job is to defend the mail inbox. Only good emails are allowed – they are yellow. SPAM, viruses and chain letters are not allowed in the inbox so you must shoot them to the SPAM folder. If you perform badly, you will get uninstalled. After each wave of mail, use the points you have earned to upgrade your gun, your ammunition and your power. Can you beat all 20 waves of mail? Have a super time working as a SPAM Defender!