A catch-all functionality that is enabled for a given mailbox will permit you to receive email messages that are sent to addresses that do not actually exist. In other words, if you disable an email address and someone still sends an email message to it, or to any misspelled address under the very same domain name, you’ll get the email in the catch-all mailbox. Using this feature implies that you won’t miss an email for any reason, which could be vital in case you run some company, for instance. Since you may begin receiving unsolicited messages, you can combine the catch-all feature with anti-spam filters so as 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 activated for a catch-all mailbox.