Case Study: Yesmail achieves 4-5M messages/hour throughput and slashes hardware from 200 to 20 with Message Systems

Yesmail - Customer Case Study

Yesmail Interactive is a leading email service provider and creator of the Yesmail Market Intelligence platform, helping major brands optimize multi-channel campaigns. As the company attracted larger enterprise clients it faced tougher SLAs and growing pressure on deliverability, throughput and operating costs from an aging open-source MTA-based infrastructure and a sprawling fleet of servers.

Yesmail migrated to Message Systems’ Momentum platform, gaining clustering, automated bounce and ISP throttling, and modern authentication (DKIM/DMARC) to improve manageability and inbox performance. The switch boosted throughput to about 4–5 million messages per hour (up from 0.5–1.5M), delivered routine inbox rates of ~98%+, cut the server footprint from ~200 machines to ~20, and reduced costs while future-proofing the service.

Yesmail