By Wheat on Wednesday, 05 March 2014
Category: To Comment or Not

Thank Me Later Plugin

First time visitors are important to any site. With this plugin, you can automatically send a "thank you" email to those who comment on your blog for the first time. Additionally, it helps keep your visitor engaged by reminding them to check back at that link for any further information/comments.

http://wordpress.org/extend/plugins/thank-me-later/