KumoMTA
Take Control of Your Email Infrastructure
Description
KumoMTA is a robust Mail Transfer Agent (MTA) built to empower enterprise organizations with reliable, high-throughput email delivery. Released under the Apache 2 license, it offers a transparent and open-source approach, enabling businesses to break free from restrictive commercial licenses while leveraging a scalable and customizable email infrastructure solution.
Designed for large senders, KumoMTA allows seamless integration with modern technologies such as Docker, Kubernetes, and a rich Lua scripting engine. Its architecture supports advanced observability tools, direct database access, and horizontal scaling, making it ideal for managing complex MailOps environments and ensuring optimal deliverability.
Key Features
- High Performance: Capable of sending millions of emails per hour on a single server
- Horizontal Scalability: Easily scales across multiple servers with Docker and Kubernetes
- Integration Flexibility: Supports Lua scripting, webhooks, AMQP, Kafka, and direct database access
- Advanced Observability: Compatible with Prometheus and Grafana for monitoring
- Open-Source Model: Released under Apache 2 license with transparent GitHub-hosted source code
- Community Driven: Active community supporting and improving the tool continuously
Use Cases
- Managing large-scale transactional or marketing email delivery
- Upgrading or replacing legacy Mail Transfer Agents
- Integrating with enterprise email delivery architectures
- Optimizing deliverability in complex MailOps environments
- Building custom email pipelines with modular scripting
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