Driving the Future of Business Email in North America

Security, reliability, and innovation at our core — built specifically for US & Canadian organizations. Explore our features →

Mission and Vision

Our Mission

To provide businesses across the United States and Canada with secure, reliable, and scalable email infrastructure that grows with their needs — enabling them to focus on what matters most: their core business objectives.

Our Vision

A world where North American businesses of all sizes can focus on growth and innovation while we seamlessly handle their complete email infrastructure — making secure business communication accessible and affordable for everyone.

1,200+
Businesses Served
99.9%
Uptime SLA
50M+
Emails Processed Monthly
24/7
Expert Support

What drives everything we do

Security First

Every feature, every decision, every line of code starts with the question: is this the most secure way to do this? See our security features.

Reliability

99.9% uptime SLA backed by redundant infrastructure across multiple North American data centers. Check our plans.

Customer Success

Your success is our success. We measure ourselves by your outcomes, not just uptime metrics. Contact our team.

Innovation

Staying ahead of threats and technology trends so your email infrastructure is always modern and protected.

North American Focus

We understand US and Canadian compliance requirements intimately — PIPEDA, CCPA, SOC 2. Read our privacy policy.

Transparency

No hidden fees, no surprise limitations. Clear pricing, honest communication, and public status pages.

The people behind DO Mailbox

David Kim
CEO & Co-Founder

Ex-Google, 15+ yrs email infrastructure

Sarah Reeves
CTO & Co-Founder

Security architect, Stanford CS

Marcus O'Brien
VP Engineering

Distributed systems specialist

Amanda Leblanc
VP Customer Success

Enterprise SaaS veteran, Montréal, QC

Join our team

We're a remote-first team across the US and Canada, building the future of business email. Contact us to apply.

Senior Backend Engineer
Remote (US/Canada) · Engineering
Apply →
Security Engineer
Remote (US/Canada) · Security
Apply →
Customer Success Manager
Toronto, ON or Remote · Customer Success
Apply →
Sales Development Rep
New York, NY or Remote · Sales
Apply →

Media resources

Ready to get started?

Join over 1,200 North American businesses already using DO Mailbox. Start free trial today →