A catch-all feature that is enabled for a specific email mailbox will allow you to receive email messages that are sent to addresses that do not really exist. To state it differently, if you remove an email address and somebody still sends an email message to it, or to any miswritten email address under the exact same domain name, you will get the email in the catch-all mailbox. Using this functionality means that you won’t miss an email for any reason whatsoever, which could be essential in case you are running some company, for instance. Since you may begin receiving unsolicited bulk emails, you can use the catch-all option with anti-spam filters so as to get only legitimate emails in your inbox. Only one single mailbox per domain name can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.