An auto-responder email is a a message that is sent from your email address as the answer to each email that you receive. The content is predefined and is sent automatically, so each individual that contacts you via email will get it when their message is received on the server that takes care of your e-mails. This feature is used if you have to notify individuals about different things, including being out of the office for a specified period of time or that an order is received and is currently being processed. The auto-responder e-mail furthermore serves as a verification for the people who get in touch with you that their email has been received, even if you are unable to read it and get back to them right away. It could contain just about any text of your choice and also it can be modified based on the exact occasion.