Blog

Engineering insights, deliverability deep-dives, and product updates. Built AI-native from day one.

Why We Built RelayPost

The origin story. Why we started an AI-native email platform and what makes it different.

Google and Yahoo enforcement, ARC adoption, and what developers need to know right now.

A transparent breakdown of what SendGrid actually costs at scale — and where the hidden fees live.

SES is the cheapest way to send email — until you add up everything else you need to build around it.

Inside RelayPost's bounce processing pipeline — automatic classification, suppression, and reputation protection.

Industry data on delivery rates, bounce rates, and complaint rates — with context for what the numbers actually mean.

Our tech stack, why we chose it, and what we learned building a production email platform on Bun.

AI-native email infrastructure. Set up in minutes, not days.