Why should I segment my list by engagement level?
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If you're only going to segment one way, make it engagement. Here's why: mailbox providers like Gmail and Microsoft watch how your subscribers interact with your mail. If your average subscriber ignores your emails, they're going to assume the rest of your mail is probably unwanted too. Your disengaged subscribers drag down your sender reputation for everyone, even your best customers.
Beyond reputation, engagement segmentation just makes sense. Why send the same amount of mail to someone who opens everything and someone who hasn't opened in six months? The person opening your mail probably wants more from you. The dormant one might prefer less, or nothing. Matching what you send to what people actually want fixes a lot of problems.
Without engagement segmentation, your inactive people poison your metrics for the whole list. With it, you can mail confidently to people who want to hear from you, work on winning back the uncertain, and let go of the truly dormant. You're not excluding people. You're respecting where they're at in their journey with you. Learn how to identify and handle inactive subscribers so you're sending to the right people.
The payoff is deliverability and ROI. When you send only to people showing real interest, your open rates go up, your bounce rates go down, and your sender reputation improves. Start by defining what "engaged" and "inactive" mean for your business, then segment accordingly.
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