A catch-all feature that is activated for a given email mailbox will allow you to receive emails that are sent to addresses that do not really exist. Otherwise put, if you remove an email address and somebody still sends a message to it, or to any mistyped email address under the very same domain name, you’ll get the email in the catch-all mailbox. Using this feature means that you won’t miss an email for any reason whatsoever, which could be vital in case you run some company, for example. Since you may begin receiving junk emails, you can use the catch-all feature with anti-spam filters so as to receive only legitimate messages in your inbox. Just one mailbox per domain can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.