SpamAssassin identify unsolicited bulk email, more commonly known as spam, and send it to a separate folder (Spam Box) or automatically delete it (Auto-Delete) from your email account.
By default, SpamAssassin on cPanel is disabled so that the user’s cPanel side must be manually enabled.
Follow the below steps to enable SpamAssassin by default for all cPanel accounts.
# Login to WHM
# Go to “Service Configuration”
# Go to “Exim Configuration Manager”
# Enable “Apache SpamAssassin: Forced Global ON” option and click on “Save” button