
Birthday Email Marketing in 2026: The Retention Playbook Sephora, Starbucks, and DoorDash Actually Run
Birthday emails have the highest transaction rate of any automated retention email. Klaviyo benchmarks put them at 3–5x standard promotional sends. Sephora, Starbucks, Ulta, DoorDash, and Nike run the playbook. Most brands run token discounts. The gap is measurable. true










