Email delivery today is still harder than it should be - fragmented APIs, complex SMTP layers, unpredictable inboxing, and limited visibility into what actually happens after an email is sent.
We built MX18 to fix that.
MX18 started with a simple belief:
Developers deserve an email platform that is fast, transparent, and easy to integrate - without the pain of managing infrastructure.
What began as an internal routing engine has grown into a full-stack, developer-first email platform powering modern SaaS products, marketplaces, startups, and global enterprises.
MX stands for Mail Exchange and represents the foundation of how email works.
18 symbolizes coming of age — the shift from legacy infrastructure to a modern, AI-driven platform.
To give developers complete control over how email is built, delivered, and scaled.
We’re reimagining the email pipeline with clean APIs, intelligent routing, real-time observability, and deep deliverability insights - so engineering teams can ship faster and operate with confidence.
We’re building the universal email layer for the modern internet.
Instant to integrate, smart enough to self-route, and transparent enough to diagnose issues in real time. Developers deserve full control without complexity, the ability to scale from 100 to 100M emails effortlessly, and an email system that behaves like code: predictable, programmable, and never a black box.
Our founding team brings decades of experience building enterprise-grade email systems and scaling CPaaS platforms globally. We have solved the toughest challenges, so you don't have to.