Track Delivery shows delivery reports for mail processed by the cPanel account and is one of the most useful tools for diagnosing email problems.
- Open cPanel → Email → Track Delivery.
- Optionally enter a recipient address.
- Select Run Report.
- Review the Event and Result columns.
Common event states
- Success — the server reports successful delivery.
- Deferred — delivery will be retried.
- Error — a delivery error occurred.
- Rejected — the message was rejected during SMTP processing.
- Filtered — the server accepted the message but a filter prevented normal inbox delivery.
The Result column often contains the most useful explanation, including connection errors, recipient problems, or remote-server responses.