1. Login to your cPanel Account.
2. In the Email section, click the Spam Filters Icon.
3. Toggle Process New Emails and Mark them as Spam to enable it. If the knob/toggle is showing in grey color, it means the Apache SpamAssassin is disabled, and you need to enable it.

4. Enable SpamBox by clicking on Move New Spam to a Separate Folder (Spam Box).

Now, whenever you receive a spam message with a spam score of 5 or more, the spam email will be automatically removed by Spam Assassin.
