Re-engage contacts who went quiet
Updated May 3, 2026
A re-engagement automation targets contacts who have not opened in, say, 90 days. Trigger it on a date-based condition against last_opened_at.
Send one honest email: "We noticed you have not opened in a while. Want to stay on the list?" with a clear yes link. If they do not respond within your window, remove them from the active list.
A smaller list of people who want your email outperforms a big list that does not. This is not a growth-hack opinion; it is how open rates and deliverability actually work.