Email autoresponders are computer programs that automatically answer email. Autoresponders fall into two categories: infrastructure and user-definable. Infrastructure-based autoresponders are the responders that send you helpful automated messages like those you received when an email sent to a given domain cannot be delivered. User-definable responders most typically take the form of vacation away messages that indicate to the sender that the recipient is out of the office for an extended period of time. Other common user-defined responders include automated messages received after joining mailing lists or confirmation of a purchase made.
- By Jason Fitzpatrick on 11/17/13