What does cPanel's Autoresponders feature do?

Autoresponders is a feature in cPanel which allows its users to create automatic response messages for certain, if not all, e-mail accounts. The automatic message respond will be sent at a certain time, upon receiving an e-mail in the message box of the account, which has set the autoresponder.

This feature is very useful when the recipient is unavailable for a certain period of time. This way they can notify whoever is sending them an e-mail, that they will be gone for this certain period of time or can leave an alternative contact.