A catch-all email is a convenient way to receive any messages sent to incorrect or invalid email addresses for your domain, e.g., if you have support@domain.tld and the sender wrote suport@domain.tld.
How to Create a Catch-All
Navigate to he Email section of your cPanel and locate the Default Address option:
On the new page, choose the domain name from the drop-down menu, mark the option to Forward to email address, and enter the mailbox to which emails will be forwarded:
When all is good to go, click on Change and the catch-all will be created.
How to Delete Catch-All Emails
In the Default Address section, change the setting to one of the following according to your preference:
Discard with a message to the sender - specify the message to be sent in Failure Message
Discard without notification - expand the Advanced Options to find the Discard (Not Recommended) option
Next, click on Change to update this setting. If needed, you can create a new catch-all at any time.