A catch-all feature that is activated for a particular e-mailbox will allow you to receive emails that are sent to addresses that do not really exist. To put it differently, if you disable an email address and somebody still sends an email message to it, or to any miswritten address under the very same domain name, you’ll receive the email in the catch-all mailbox. Using this functionality implies that you will no longer miss an email for any reason, which could be essential in case you run some business, for example. Since you may begin receiving spam emails, you can use the catch-all feature with email filters in order to get only legitimate email messages in your inbox. Only one mailbox per domain can be a catch-all one and email forwarding cannot be set up for a catch-all mailbox.