Keeping track of your email marketing is essential. You can only decide your next step or course of action once you have the numbers in hand. Following the distribution of your campaign, there are a few things to keep an eye on.  i) Click-through rate   Click-through rates are frequently used by marketers during A/B tests to determine what might be effective, and what may not.  ii) Conversion rate  Click-through rates are frequently used by marketers in A/B tests to determine what works and what does not.  iii) Bounce rate  The bounce rate is calculated by dividing the total number of bounced emails by the total number of emails sent and multiplying by a hundred.