A catch-all feature that is activated for a given e-mailbox will allow you to receive emails that are sent to addresses that do not really exist. To state it differently, if you deactivate an email address and somebody still sends a message to it, or to any misspelled address under the very same domain name, you will receive the message in the catch-all mailbox. Using this functionality implies that you won’t miss an email for any reason whatsoever, which could be crucial in case you run some business, for instance. Since you may begin receiving unsolicited messages, you can combine the catch-all option with anti-spam filtering software in order to get only real messages in your inbox. Only one mailbox per domain name can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.