A catch-all functionality that is activated for a given e-mailbox will permit you to receive email messages that are sent to email addresses that do not really exist. Otherwise said, if you deactivate an email address and someone still sends an email message to it, or to any mistyped address under the exact same domain, you will receive the message in the catch-all mailbox. Using this feature implies that you won’t miss an email for any reason whatsoever, which could be crucial in case you run a business, for instance. Since you may start receiving spam messages, you can combine the catch-all feature with anti-spam filtering software so as to get only authentic messages in your inbox. Just one mailbox per domain can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.