We found a great service which helps one to get an analysis of the emails being opened and what all readers are clicking. This is essential if you want to add wings to your sales marketing. The below video of Yesware will tell you how you can track email sent by you and what action has been taken by the user. However if you are worried about your email not going in inbox and may land in spam than a service like yesware can definitely trigger the spam filters. Nonetheless it is a good service.