The essential metrics you should be tracking for E-Mail campaign are −
· Click Through Rate − It gives you clear view of how many people engage with your mail and are interested in what you offer.
· Conversion Rate − It helps you know, to what extent you are able to achieve your goals.
· Bounce Rate − It lets you know how many consider you as a spammer of worth time wasting.
· Subscribers’ Growth Rate − It lets you decide how much you are able to extend your reach.
· Email Forwarding Rate − The more is the rate the more interested are your customers.
· Overall ROI − The gist of tracking is how many leads you are able to generate through your campaigns.