POP email accounts are mailboxes used for your domain which are stored on the server and downloaded from the server directly. Click here for further instructions on setting up a new email account through your cPanel Control Panel. A person may set up a POP3 account and retrieve their mail using a program on their desktop or mobile device.
An Email Forwarder/Alias is an email address in which all emails are automatically forwarded to an alternative existing email account. In most cases, a forwarder is just a vanity address and not an actual mailbox that stores messages. For instance, you may forward all emails addressed to info@youdomain.com to automatically arrive at someotheremailuser@gmail.com. Click here for further instructions on setting up an Email Forwarder.
An Autoresponder is an email address that will automatically reply to someone with a pre-determined response. Click here for further instructions on setting up autoresponders.