A catch-all functionality that is activated for a certain email mailbox will permit you to receive emails 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 miswritten address under the very same domain, you’ll get the email in the catch-all mailbox. Using this feature means that you won’t miss an email for any reason, which could be vital if you are running a company, for example. Since you may begin receiving unsolicited bulk emails, you can combine the catch-all feature with anti-spam filtering software so as to receive only authentic messages in your inbox. Only one single mailbox per domain can be a catch-all one and email forwarding cannot be set up for a catch-all mailbox.