Review the delivery route of an email. This can be useful if you need to locate issues with email delivery and other options such as the sender, sending time, spam score, recipient, result, and actions taken by the server.
Step 1
Logged into your cPanel in the "EMAIL" tab, locate the item "Track delivery".Step 2
By default, the 250 most recent failed message deliveries sent to your email accounts will be shown. On this screen under "Recipient's email" you can enter a specific email address for the search to be carried out. If you don't want to, just click "Run report".
You can also choose between the first two options: 'Show all' or 'Show blocked and failed' as shown above. And you can also choose to display only one of the four options at a time, as shown below.