A catch-all feature that is activated for a given email mailbox will permit you to receive email messages that are sent to email addresses that do not really exist. Otherwise put, if you delete an email address and someone still sends a message to it, or to any miswritten address under the same domain, you will get the message in the catch-all mailbox. Using this feature means that you won’t miss an email for any reason whatsoever, which could be essential if you run a company, for instance. Since you may begin receiving spam emails, you can combine the catch-all feature with anti-spam filters in order to get only authentic email 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.