A catch-all functionality that is activated for a particular email mailbox will permit you to receive emails that are sent to addresses that do not actually exist. In other words, if you delete an email address and someone still sends a message to it, or to any misspelled email address under the very 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, which could be vital in case you are running a business, for example. Since you may start receiving unsolicited messages, you can use the catch-all option with anti-spam filtering software in order to get only authentic emails in your inbox. Just one mailbox per domain name can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.