Apache SpamAssassin is a mail filter that recognizes spam. It is an intelligent email filter that applies a diverse range of tests to classify undesired bulk email, also commonly known as spam. Certain tests analyze email headers and content to classify email with excellent statistical techniques.
1. Login to your cPanel account.
2. Under the "Mail" section, click on "Apache SpamAssassin" Icon.
3. Click on the "Enable Apache SpamAssassin" button.