Message Bus provides email delivery at scale, made simple, done right.

Switch to Message Bus and boost email open rates by 20%, lower costs, and dramatically reduce phishing/spoofing attempts in as little as one week.


Affordable Scale

Endless capacity, 70%+ cheaper

Never worry again about running out of capacity. Our cloud-native platform scales on demand and operates in multiple availability zones at a cost that's 70%+ less than the competition.


See data in real-time

Go beyond marketing automation

Drill into performance metrics across every business unit, audience, product line, or however you choose to segment your outbound email.

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Hello Message Bus cloud, goodbye email infrastructure!

100% cloud-native - what else makes Message Bus amazing?

How We Stack Up

Nobody delivers like Message Bus

Affordable scale, DMARC-compliant security, the best dashboard in the industry, and more... when it comes to large-scale messaging, we're in a class of our own.

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ISP-Friendly: Send it Right

Protect your brand

Every Message Bus client gets dedicated IPs, full authentication, and monitoring. Our innovative tools help reduce the chance of your brand identity being used to compromise your customers. No additional contracts or services are required.

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Powerful API

Send it your way

Our REST API, multi-language SDKs, and SMTP relay let you send messages any way you want with the speed and scalability that set us apart.

Documentation >