A catch-all feature that is enabled for a given e-mailbox will permit you to receive emails that are sent to email addresses that do not really exist. In other words, if you deactivate an email address and somebody still sends an email to it, or to any misspelled address under the exact same domain name, you will receive the message in the catch-all mailbox. Using this feature implies that you won’t miss an email for any reason whatsoever, which could be essential if you are running a business, for instance. Since you may begin receiving unsolicited emails, you can use the catch-all feature with anti-spam filtering software in order to receive only legitimate messages in your inbox. Just one single mailbox per domain name can be a catch-all one and email forwarding cannot be activated for a catch-all mailbox.