This article provides you with information on how to add a DMARC record to your domain in cPanel.
Step 2 - Navigate to Domains, then click DNS Zone Editor:
Step 3 - Then click the Manage button of the domain of your choice:
Step 4- Click the Add Record button, as illustrated:
- Select "DMARC"
- Choose policy "Quarantine"
Step 5 - Click "Add Record"