Improve subscriber engagement by sending newsletter follow-ups.

If your subscribers aren't reading your newsletter, they're dead weight. Keep subscribers engaged by following up with those who didn't see this week's email, and letting them know what they missed.

Inactive subscribers don't provide much value and they can actually hurt your email deliverability. To keep his readers reading, Josh Spector of For The Interested gives his readers an extra chance to check out his latest newsletters. At the end of each week, he sends a follow-up email to everyone who did not open his newsletter from earlier in the week. The subject line says, "Here's what you missed...". And the content is exactly the same, save for a quick explanation as to why he's sending it. The time investment is low, but the results are impressive — roughly 25% more people read his newsletter each week thanks to his follow-up.