Case Study: Sailthru Achieves Reliable 100M+ Daily Personalized Email Delivery with Bird PowerMTA

How Sailthru deploys hundreds of millions of personalized emails every day using PowerMTA

Sailthru, an omnichannel marketing technology company, needed an industrial-strength email delivery infrastructure to support hundreds of millions of personalized messages sent around the clock. After using Postfix, the company was looking for a more stable, dependable solution that could handle high-volume traffic, real-time queue management, and customized deliverability data. Bird, formerly MessageBird, provided the platform through PowerMTA.

By implementing Bird’s PowerMTA, Sailthru gained real-time queue visibility, the ability to move messages between queues under heavy load, and faster, more responsive reporting during peak periods. The result was a rock-solid email delivery system capable of sending 100M+ emails daily across 51 countries, with improved performance, reliability, and campaign tracking visibility.

Sailthru

Ken Pfeiffer

Director of Global Delivery