How to set up spam filtering

Email
  1. Login to your mail domain http://mail.yourDomain.com
  2. Click on the Settings icon in your left panel.
  3. Expand the Filtering link
  4. Select Content Filtering
  5. Select Override spam setting for this account
  6. Click on button New 
  7. After see click on Button New you will see below interface. 
  8. Create your Content filtering rules. 
  9. You may create multiple rules for filtering.