A catch-all feature that is enabled for a certain e-mailbox will allow you to receive email messages that are sent to addresses that do not actually exist. To state it differently, if you remove an email address and someone still sends an email to it, or to any mistyped email address under the exact same domain name, you will receive the message in the catch-all mailbox. Using this feature means that you won’t miss an email for any reason, which could be crucial if you run a business, for instance. Since you may begin receiving spam email messages, you can combine the catch-all functionality with anti-spam filtering software in order to get only real messages in your inbox. Just one single mailbox per domain can be a catch-all one and email forwarding cannot be activated for a catch-all mailbox.