Fast
KumoMTA is architected for the performance needed by enterprise senders, whether it's sending several million messages per hour through a single server, or scaling horizontally using Docker and Kubernetes.
Flexible
KumoMTA can replace straightforward configurations or be deeply integrated into your MailOps environment thanks to our Lua scripting engine and support for technologies including webhooks, AMQP, Kafka, Vault, Prometheus, Grafana, and direct database access.
Open-Source
KumoMTA is released under the Apache 2 OSI-approved license, with the ultimate transparency of having our sourcecode hosted on Github. Our community is actively involved and contributing to make KumoMTA better every day.
Our Sponsors
Our Growing Community
Lines of Source Code
Pages of Documentation
Discord Members
Stars on GitHub
Our Users
Taguchi Marketing
Ben Dyer
"We’ve known Kumo’s founders and worked with them for many years, That personal connection was critical.
The fact they’re involved was enough to get us over the line to becoming a customer."
Our Partners
Ongage
Postmastery
EmailConsul
Edgeneering
Edgeneering LLC is a Web Development and technology company specializing in software & database development, high security data center hosting, and Open-Source consulting services.
Our Latest Blog Posts
- Tom Mairs
- September 24, 2024
- Mike Hillyer
- September 3, 2024
- Tom Mairs
- August 26, 2024
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Choose the Best MTA
Find out more about how you can break free of the commercial license trap while leveraging the best MTA for enterprise senders.
Let's Talk
Chat with our founders and learn how easy it can be to move to KumoMTA.