A re-engagement email can help you to enrich your understanding of your contacts' interests, as well as foster engagement.
What we liked about the Elementor Re-engagement Email
The content of the Elementor email is positive! Rather than "if you don't take action, we will stop emailing", the email made it clear that there's no pressure, and the recipient doesn't have to do anything to maintain the status quo.
The email provides the option to unsubscribe, but also explains that you can adjust how many emails you are receiving and which types of emails, by adjusting your preferences.