Autoresponders are wonderful! They can be used for a variety of things, but there are several ways that autoresponders should not be used. Using autoresponders in improper ways will make things a bit more difficult for other people, and it could make things really bad for you!
Having one autoresponder respond to another autoresponder creates chaos, and in some cases, it can overload servers. This happens when you sign up for something, using your autoresponder email address. You sign up, and a message is sent to someone else’s autoresponder, which responds to your autoresponder, which responds to that autoresponder – and this continues on and on until it is manually stopped and straightened out.