Case Study: J.Jill maintains a 99.7% inbox placement rate through three ESP migrations with Validity Everest

J.Jill maintains a consistent ~100% inbox placement rate throughout three ESP migrations with Validity Everest

J.Jill, the women's clothing and accessories retailer, needed to protect a high-performing email channel while completing three ESP migrations in three years. To manage the risk of deliverability loss and operational disruption, J.Jill leaned on Validity—specifically the Validity Everest deliverability platform (with supplemental BriteVerify verification)—for visibility, expert guidance, and monitoring throughout each migration.

Validity supported a staged migration plan (audits, audience segmentation, list hygiene, IP pre‑warming, migrating the most engaged recipients first, and continuous monitoring) and provided data-quality checks via BriteVerify. The result: J.Jill sustained a 99.7% inbox placement rate across all three migrations (a single brief dip to 96.8% was quickly identified and corrected), maintained strong revenue from email (average revenue per email more than double the industry average), and preserved customer relationships thanks to Validity’s platform and team support.

J.Jill

Michael Cabral

Senior Manager of Email Operations and Strategy