Most of us have used an autoresponder at one point or another in our Internet adventures. Provide tutorials and other training materials Share your knowledge of topics that you are familiar with. Use an autoresponder to tell somebody that the decision to buy the product was a good one and that they shouldn't worry about wasting money. If you sell advertising on your web site, send a letter to an advertiser asking them if the results of their campaign were good. Ask them to send you testimonials or suggestions to make the advertising more worthwhile.
Most web hosting companies offer free autoresponders as well.
Contact your host and ask them.