1)  Log into the control panel and Click System Tab




2)  Scroll Down to Domains Section




3)  Click on Desired Domain Link




4)  Click on Mail Icon




5)  Click on Spam Icon




6)  Enable Spam Filtering and Scroll Down to Bottom




7)  Click OK




8)  Click Spam Filter Icon




9)  Click Training Icon




10)  Select Addresses and Designate Whether They are Spam or Not Spam