A catch-all feature that is enabled for a certain e-mailbox will allow you to receive emails that are sent to addresses that do not really exist. Otherwise stated, if you delete an email address and someone still sends an email message to it, or to any miswritten email address under the very same domain name, you’ll get the email in the catch-all mailbox. Using this feature means that you will no longer miss an email for any reason, which could be essential if you run a business, for instance. Since you may start receiving spam email messages, you can use the catch-all option with email filters so as to receive only authentic messages 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.