A catch-all feature that is activated for a specific mailbox will allow you to receive email messages that are sent to addresses that do not actually exist. Otherwise stated, if you disable an email address and someone still sends an email to it, or to any miswritten address under the exact same domain name, you’ll get the email in the catch-all mailbox. Using this functionality implies that you will no longer miss an email for any reason whatsoever, which could be vital if you are running some business, for instance. Since you may begin receiving unsolicited bulk emails, you can combine the catch-all option with email filters in order to get only real emails in your inbox. Only one mailbox per domain name can be a catch-all one and email forwarding cannot be set up for a catch-all mailbox.