A catch-all email mailbox receives email messages sent to non-existent addresses under the exact same domain name. For example, an email message sent to the mistyped [email protected] will be delivered to [email protected] if the catch-all feature has been enabled for the latter. In this way, you can receive emails from partners or customers who may have sent a message to your email address with a spelling error or to an old one, which they may still have, but you have already disabled. Just one mailbox per domain name can be a catch-all one and email forwarding cannot be activated for such a mailbox. The latter is due to the fact that at some moment you may begin receiving spam email messages in the catch-all mailbox and the forwarding limitation implies that the spam will not be sent to a 3rd-party mailbox.