A catch-all feature that is activated for a specific e-mailbox will allow you to receive emails that are sent to addresses that do not actually exist. To state it differently, if you delete an email address and somebody still sends an email to it, or to any misspelled address under the very same domain, you will get the message in the catch-all mailbox. Using this functionality implies that you won’t miss an email for any reason, which could be vital if you are running some business, for instance. Since you may start receiving unsolicited emails, you can combine the catch-all feature with anti-spam filtering software so as to get only real messages in your inbox. Only one single mailbox per domain name can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.