What is a catch-all email account?

A catch-all email account is an address that is specified to receive all messages that are addressed to an incorrect email address for a domain. For example, you have three email addresses set up for coolexample.com; [email protected], [email protected], and [email protected], you can set up [email protected] as a catch-all email account. Then, any email messages sent to [email protected] (or any other invalid email address), are sent to the catch-all account ([email protected]).

You can set up one catch-all email account per domain name.