To add Guardian Mail:
  1. Log into WHM.
  2. On the left, select “Exim Configuration Manager,” then select the “RBLs” tab.
  3. Select “Manage Custom RBLs.”
  4. Under “Add a new RBL,” enter the following: 
Rbl Name: abusix
Rbl Info URL: https://lookup.abusix.com
Dns List: <APIKEY>.combined.mail.abusix.zone
(Replace <APIKEY> with Your API key from your account in
  1. Replace <APIKEY> in all places with “Your API key” from your account in app.abusix.com.
  2. Click “Add” – you’ll be shown a notification page directing you to enable it in your Configuration Editor, then rebuild your Exim config.
  3. Click “Exim Configuration Editor” and select the “RBLs” tab.
  4. To the right of “Custom RBL: abusix”, select “On”
  5. Click “Save” to rebuild the Exim Configuration.