Using this plugin you can schedule your email and send it as later as per your convenience. You can also set specific conditions like send in 2 days,1 week, 1 month or a specified time. http://youtu.be/4KmsqYjB9j4 you can watch the video here. You can install Boomerang right now. I have used it and I'm very much happy. Note: This is not a promotional email. Just sharing information.