A catch-all functionality that is activated for a particular email mailbox will allow you to receive email messages that are sent to email addresses that do not really exist. In other words, if you delete an email address and somebody still sends an email to it, or to any misspelled email address under the exact same domain, you’ll get the message in the catch-all mailbox. Using this feature means that you will no longer miss an email for any reason whatsoever, which could be essential in case you are running some company, for example. Since you may start receiving unsolicited bulk messages, you can use the catch-all functionality with email filters in order to receive only authentic emails in your inbox. Just one single mailbox per domain name can be a catch-all one and email forwarding cannot be set up for a catch-all mailbox.