A catch-all feature that is activated for a certain email mailbox will allow you to receive email messages that are sent to addresses that do not really exist. Otherwise stated, if you delete an email address and someone still sends a message to it, or to any mistyped email address under the very same domain, you will receive 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 in case you are running some business, for example. Since you may start receiving junk email messages, you can combine the catch-all feature with anti-spam filtering software so as to get only real messages in your inbox. Only one single mailbox per domain can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.