You can change the Spam Settings by following the steps given below.
1. Login into the webmail.
2. Click on Setting Gear (Second from the Bottom).
3. Expand the Filtering option.
4. Click on Spam Filtering.
5. Click the Override option.
6. Click on Actions and make changes to the filtering.
7. If you would like to change the scoring convention for Spams, please click on Current Weights.
8. Click on Save.