Case Study: Iterable achieves scalable, reliable high‑volume email delivery with Message Systems' SparkPost

Iterable - Customer Case Study

Iterable, an all-in-one platform for transactional, promotional and lifecycle messaging, faced growing pains as its incumbent email provider struggled to keep up with rising sending volumes—causing spotty performance, delayed or undelivered mail, and repeated incidents that threatened customer engagement and revenue. Concerned about scalability and reliability, Iterable began searching for a new cloud email partner.

Iterable switched to SparkPost in about a week, drawn by Message Systems’ industry reputation, fast onboarding, and hands-on support for integration and dedicated IP ramp-up. The move delivered immediate results: more reliable delivery, higher customer engagement and uninterrupted revenue streams, the ability to scale to roughly 1,000 messages/second via API with modest resources, and new, detailed deliverability analytics for Iterable’s clients.

Iterable