Email engagement rate is the percentage of recipients who interact with an email by taking a desired action such as clicking a link, opening an email, or performing other actions. For e-commerce businesses, this metric is critical as it measures the effectiveness of their marketing campaigns and customer engagement.To boost email engagement rate, businesses can use tactics such as personalizing email content, segmenting email lists, or enhancing email design. By improving email engagement rate, businesses can increase the efficacy of their marketing campaigns, boost customer engagement, and ultimately generate more revenue.