As time goes on, subscribers might gradually lose their initial enthusiasm for opening your emails. Additionally, life's demands can sometimes lead users to overlook their inbox altogether. Utilizing engagement metrics like click rates and, if available, open rates, allows you to identify subscribers who may have become less engaged.

Reengagement emails serve as a compelling nudge, providing them with an enticing reason to reconnect with your product.^[1] This incentive could take the form of rewards, updates on products or services, or exclusive opportunities they may have missed out on.