@LukeS602 in addition to the great advice @DavidFischerSolutionsForGrowth is set to provide, I want to mention one of my favorite features in Constant Contact.
It's a setting on your send screen called Automatic Resend to Non-Openers. You can check the box to activate it, then pick the future date and time to re-send the email to anyone who didn't open it the first time. You can even change the subject line or have it reflected that it's a re-send .. ie: "In case you missed it:...."
This alone has bolstered open rates drastically for so many users. Many times subscribers do want to hear from a brand but their inbox is so busy they miss it the first time. Since the feature doesn't ever bother those who opened it already, it's the best of both worlds.
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