A catch-all functionality that is activated for a specific email mailbox will allow you to receive email messages that are sent to email addresses that do not actually exist. Otherwise stated, if you deactivate an email address and someone still sends a message to it, or to any misspelled address under the same domain, you’ll receive the message in the catch-all mailbox. Using this functionality means that you will no longer miss an email for any reason whatsoever, which could be crucial if you run a company, for example. Since you may begin receiving junk messages, you can combine the catch-all functionality with anti-spam filtering software so as to get only real email 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.