Your recovery series should feel helpful, not desperate. Email one goes out 2-4 hours after abandonment: "Looks like you left something behind!" Show the items, include product images, and add a clear button to complete the purchase. Email two follows 24 hours later with social proof – reviews, ratings, or how many others bought the item. Email three, sent after 72 hours, creates urgency with a limited-time discount or low stock warning.