A catch-all feature that is enabled for a particular email mailbox will permit you to receive email messages that are sent to addresses that do not actually exist. Otherwise stated, if you delete an email address and someone still sends an email message to it, or to any misspelled email address under the exact same domain, 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 crucial if you run a business, for instance. Since you may begin receiving unsolicited messages, you can combine the catch-all functionality with email filters so as to receive only legitimate emails in your inbox. Only one mailbox per domain name can be a catch-all one and email forwarding cannot be enabled for a catch-all mailbox.