A catch-all email mailbox receives emails sent to nonexistent email addresses under the same domain name. For example, an email sent to the mistyped suport@domain.com will go to support@domain.com in case the catch-all feature has been activated for the latter. Thus, you can get email messages from pals or clients who may have sent a message to your email address with a spelling error or to an out-of-date one, which they may still have, but you have already deactivated. Only one single mailbox per domain name can be a catch-all one and email forwarding cannot be activated for such a mailbox. This is due to the fact that at some point you may begin receiving spam email messages in the catch-all mailbox and the forwarding restriction means that the spam will not be received in a 3rd-party mailbox.
