A catch-all functionality that is activated for a specific email mailbox will allow you to receive emails that are sent to email addresses that do not really exist. Otherwise said, if you delete an email address and somebody still sends a message to it, or to any miswritten email address under the exact same domain, you’ll receive the message in the catch-all mailbox. Using this functionality implies that you will no longer miss an email for any reason, which could be crucial in case you are running a company, for instance. Since you may start receiving unsolicited messages, you can combine the catch-all feature with anti-spam filtering software so as to receive only legitimate email messages in your inbox. Just one single mailbox per domain name can be a catch-all one and email forwarding cannot be activated for a catch-all mailbox.