An auto-responder email is an email that's sent back automatically to everyone who sends an email to a mailbox with this feature activated. The senders will get the automatic answer the instant their messages are received and you will not have to a single thing manually. A few instances of making use of auto-responder e-mails are sending an affirmation that a payment has been received and the order is being processed or that a person is on a break and won't be available for a certain time frame. In the first situation the option can be activated for a long time, while in the second one it's short-term. Even if you make use of e-mail just for private correspondence, you may use an auto-responder to let the original sender know that the email is received successfully.
