NOTE: Please take note that now SpamAssasin has been replaced by Spam Filters.
No worries. Spam Filters have the same feature/function that provided by SpamAssasin.
Enabling Spam Filter in cPanel :
1. Kindly login to the Cpanel with with the URL as http://domainname.com/cpanel
or http://domain_name:2083 (with SSL) or http://domain_name:2082 (NON SSL).
2. Scroll down and find "Spam Filters" then click on it to proceed.
3. You will see the status indicating that Spam Filter is : disabled/enabled.
To enable the Spam Assassin for your domain, click on the bar to blue colour.
If your hosting provider enables this feature by default. You cannot disable this feature.
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4. The installation will proceed and once done, you will be prompted for a message that
Spam Filter has been enabled for your domain.