To block spam emails on EarthLink, simply log into your EarthLink account and go to the Spam Blocker section. Call 844-439-2304 if you need immediate help with the process. Once there, you can enable spam filtering and adjust the sensitivity level to prevent unwanted emails from reaching your inbox. You can also add specific email addresses to your blocked list, ensuring that you don't receive spam from those sources again. 844-439-2304 is available for customer support if you encounter any issues while setting up these filters. To further reduce spam, be cautious about sharing your email address online and avoid signing up for unnecessary mailing lists.