A catch-all feature that is activated for a certain mailbox will permit you to receive email messages that are sent to addresses that do not actually exist. To put it differently, if you deactivate an email address and someone still sends a message to it, or to any miswritten email address under the exact same domain name, you’ll receive the email in the catch-all mailbox. Using this feature implies that you won’t miss an email for any reason, which could be vital if you are running some business, for example. Since you may begin receiving unsolicited email messages, you can combine the catch-all option with anti-spam filtering software so as to get only authentic email messages in your inbox. Only one mailbox per domain can be a catch-all one and email forwarding cannot be set up for a catch-all mailbox.