Autoresponder Email Marketing

I need for someone to design and create an autoresponder for our website. I'll work with the person who is going to do this and help them understand our product. Am not looking for the best autoresponder setup. I just want one that is good enough to get us some sales. The site is ecommerce and we have great content :) In your bid please message what works you have done before and what you would need from me to do this.