Email Recency refers to how recently a customer has interacted with an email campaign, helping businesses gauge engagement levels and optimize outreach strategies. Customers who have opened or clicked an email within the past few days are considered highly engaged, whereas those who haven?t interacted in months may require re-engagement campaigns. CRMs and email marketing tools like Klaviyo and Mailchimp segment audiences based on recency to tailor messaging. Monitoring email recency improves targeting accuracy, reduces unsubscribe rates, and enhances overall email marketing performance by focusing on engaged recipients.