Cpanel Spam Assassin
Spam Assassin cannbe used to filter the good email from the bad. If you ever have spread your email addrerss around, you may have noticed how junk mail starts flowing in. But, spam assassin can be used to blacklist and whitelist ip addresses.
To get Spam Assassin working,
1) Select 'Spam Assassin'.
2) Select 'Configure Spam Assassin'.
3) Add ip addresses to filter. As you fill up the spaces, Spam Assassin automatically adds new fields.
4) Select 'Save'.