A catch-all feature that is activated for a given e-mailbox will permit you to receive emails that are sent to addresses that do not really exist. Otherwise said, if you disable an email address and somebody still sends an email message to it, or to any miswritten address under the exact same domain name, you will get the email in the catch-all mailbox. Using this functionality implies that you won’t miss an email for any reason whatsoever, which could be essential in case you run some company, for instance. Since you may start receiving unsolicited emails, you can use the catch-all functionality with anti-spam filtering software in order to receive only legitimate messages in your inbox. Only one mailbox per domain can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.