cPanel provides a nice interface to blacklist or whitelist incoming emails from specific domains.
Let's describe first the Whitelist an Email Address.
Step 1: Login to your cPanel using our Client Portal
Step 2: Find the Spam Filter icon
Your next screen should look like the one I attach here.
Click on "Show Additional Configurations" and then "Edit Spam Whitelist Settings"
You can add as many domains you need in your whitelist 😊
If you need help and you are on managed Server or Business Hosting just give us a call through Live Support or Ticket and we will configure your whitelist as always for free!