If you are facing trouble in sending/receiving email to/from a specific email address, this article can be helpful as it explains you how to track email address in cPanel.
Using Track Delivery Feature in cPanel.
Every message sent to an email account in the last 30 days can be viewed with the help of a cPanel tool; Track Delivery. This feature allows you to check delivery reports of emails, errors occurred while sending emails and also check whether Spam Assassin is doing its job (filtering out incoming spam or unwanted emails) right.
The Run Report option allows you to view most recent logs and details like timestamp, sender, receiver, spam score and delivery status of each email. You can also identify problems in the email delivery by tracking the entire email delivery route.
Besides, you can get more specific details like email addresses of a domain if needed.