A catch-all feature that is activated for a certain mailbox will allow 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 an email message to it, or to any misspelled email address under the very same domain, you’ll get the email in the catch-all mailbox. Using this functionality means that you will no longer miss an email for any reason, which could be vital in case you are running some business, for example. Since you may begin receiving spam, you can combine the catch-all functionality with email filters in order to receive only authentic messages in your inbox. Just one mailbox per domain name can be a catch-all one and email forwarding cannot be activated for a catch-all mailbox.