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What is KumoMTA?

KumoMTA is an open source email infrastructure platform designed for enterprises, email service providers, and high-volume senders that need scalable, transparent, and controllable MTA technology. The platform is built for organizations that want to own their email sending infrastructure rather than depend on closed commercial systems. KumoMTA emphasizes performance, with the ability to send tens of millions of messages per hour on a single instance. It is designed to provide the scalability and resilience needed for large-scale email operations without sacrificing visibility or control. Because the platform is open source, teams can inspect the code, understand how the system works, and maintain authority over their deployment. KumoMTA is positioned around long-term stability, cost predictability, fair pricing, operational control, and reduced exposure to vendor lock-in or surprise renewal changes. The platform is supported by a growing community of developers, security researchers, enterprises, and MailOps professionals who contribute to innovation, auditing, vulnerability identification, and ongoing improvement. KumoMTA provides extensive documentation, community resources, a GitHub repository, migration guidance, and support options for teams evaluating or replacing existing MTA infrastructure. Its resources include migration information for platforms such as Hurricane MTA, Momentum, PowerMTA, and SendGrid. The platform is built for teams that need confidence in their email architecture, predictable infrastructure decisions, and the ability to send at massive scale. By combining open source MTA technology, high-volume delivery, code transparency, community stewardship, enterprise support, documentation, and migration resources, KumoMTA helps organizations modernize email infrastructure while keeping control of their operations.

What is EmailSuccess?

EmailSuccess specializes in high-capacity email dispatch utilizing top-tier SMTP servers, making it an ideal Mail Transfer Agent (MTA) for senders of various scales, including Email Service Providers (ESPs) and Marketing Automation firms. With a focus on high performance, EmailSuccess is engineered to manage the delivery of substantial email volumes, granting businesses comprehensive control over key factors such as speed, latency, and deliverability. Ensuring prompt message delivery is crucial for clients, as they must navigate the challenges posed by spam filters to ensure their emails reach the intended inboxes without obstruction. Furthermore, EmailSuccess employs advanced sending intelligence that optimizes delivery through automatic and real-time adjustments to email parameters, streamlining the process of platform tuning for users. This innovative approach not only enhances efficiency but also supports businesses in achieving their communication goals effectively.

Media

Media

Integrations Supported

Ongage
Postmastery
Prometheus

Integrations Supported

Ongage
Apache Kafka
Blackbox
Elastic Cloud
HerdDB
MySQL
Pravega
Rspamd
Splunk Enterprise

API Availability

Has API

API Availability

Pricing Information

$0
KumoMTA is Open-Source and free to use, those interested in support and services can contact us.
Free Version
Free Trial Offered?

Pricing Information

$0 - $4000
A free version is available for testing with smaller batches.
Free Version

Supported Platforms

SaaS
On-Prem
Linux

Supported Platforms

SaaS
Windows
Mac
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Online Training

Company Facts

Organization Name

Kumo Corp

Date Founded

2023

Company Location

United States

Company Website

kumomta.com

Company Facts

Organization Name

DIENNEA SRL

Date Founded

1996

Company Location

Italy

Company Website

www.emailsuccess.com

Categories and Features

Email Management

Email Archiving
Email Monitoring
Queue Manager
Routing
Whitelisting / Blacklisting

Mail Servers

Not specified

Categories and Features

SMTP

Not specified

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