A catch-all functionality that is activated for a certain email mailbox will permit you to receive email messages that are sent to email addresses that do not really exist. Otherwise stated, if you remove an email address and somebody still sends a message to it, or to any mistyped address under the exact same domain name, you will get 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 are running some business, for example. Since you may start receiving unsolicited bulk emails, you can combine the catch-all feature with email filters in order to receive only legitimate 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.