About Us

It's About


We've been building, deploying, and supporting high-performance MTAs for years, and one thing we've learned along the way is that large-volume sending traditionally relies on products with commercial licenses, proprietary products, and overworked support teams.

Our roots are in Open-Source, and we know from experience that an Open-Source business model is better for users, the product, and the community.

When we succeed, we should succeed as a community. That's our philosophy, and we're building around it every day. Join us and explore how Open-Source can fulfill your mission-critical email needs.

Our Team

45 Years Of Collective Email Experience


Wez Furlong

With 25 years of experience in distributed and large-scale systems engineering, including as lead engineer and architect on a top-performing commercial MTA, Wez brings his depth of experience at building high-performance, scalable systems to architect and develop KumoMTA.

Wez's software handles billions of interactions per day at many different sites, across email, web and source control.


Mike Hillyer

Mike has been working in on-prem email infrastructure since 2006 across multiple organizations including EmailNinjas, an on-prem email infrastructure consulting firm that he founded and successfully exited.

Mike has led multiple global remote teams involved in on-prem infrastructure and as a Product Manager, he's had a hand in the evolution of three on-prem MTAs and two cloud email relay offerings.

Tom New

Tom Mairs

Tom has over thirty years of experience in technology as a leader, consultant, administrator, and Customer Success expert, with the last fifteen years spent in the on-prem and cloud email infrastructure industry.

Tom has led global teams responsible for the sales and support of multiple MTA and cloud email infrastructure products and is passionate about customer success.

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