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Average Ratings 4 Ratings

Total
ease
features
design
support

Description

Dovecot Pro stands out as a comprehensive email solution that offers exceptional scalability, impressive performance, optimal hardware usage, and superior support for major telecommunications companies, internet service providers, and hosting services globally. Holding a dominant 76% share of the email backend market, Dovecot Pro is trusted by its customers for reliable performance and minimal downtime. Its efficient management of hardware resources, alongside innovative monitoring tools for statistics and administration, effectively lowers ownership costs while saving both time and maintenance expenses. Additionally, Dovecot Pro has the capacity to expand both vertically and horizontally, accommodating hundreds of servers, millions of users, and multiple physical locations. The architecture is stateless and native, allowing for maximum adaptability, as every significant component can be independently deployed on dedicated nodes. Moreover, Dovecot Pro excels in providing top-notch support for all essential email standards, ensuring seamless Mail Delivery Agent capability through LMTP and Sieve, while also facilitating mail retrieval for various clients via IMAP and POP3 protocols. This robust infrastructure underlines its commitment to meeting the diverse needs of its client base.

Description

KumoMTA is an open source mail transfer agent and email infrastructure platform for enterprises, MailOps teams, and high-volume senders. The platform is built to provide the control, scalability, transparency, and continuity that organizations need when email delivery is central to their business. KumoMTA is positioned as an alternative to commercially licensed MTA providers that may create pricing shocks, renewal risk, vendor dependency, or black-box infrastructure limitations. The platform can deliver tens of millions of messages per hour on a single instance and is designed to support large-scale sending without data loss. Its open source model gives teams direct access to the code and more authority over deployment, operations, and long-term infrastructure decisions. KumoMTA also emphasizes performance, resilience, cost predictability, fairness, and transparent stewardship. The community includes developers, security researchers, and enterprises that help audit code, identify vulnerabilities, and improve the platform over time. KumoMTA provides extensive documentation, a community forum, GitHub repository, migration resources, and support options for teams moving from other MTA platforms. By combining open source email infrastructure, high-volume performance, operational control, community development, documentation, and enterprise support, KumoMTA helps organizations invest in their own email infrastructure with greater confidence.

API Access

Has API No 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

Aid4Mail Yes 
Dovecot Yes 
Ongage No 
Postmastery No 
Prometheus No 

Integrations

Aid4Mail No 
Dovecot No 
Ongage Yes 
Postmastery Yes 
Prometheus Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

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

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux Yes 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux Yes 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours Yes 
Live Rep (24/7) Yes 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars Yes 
Live Training (Online) Yes 
In Person Yes 

Vendor Details

Company Name

Open-Xchange

Founded

2005

Country

Germany

Website

www.open-xchange.com/products/dovecot-pro/

Vendor Details

Company Name

Kumo Corp

Founded

2023

Country

United States

Website

kumomta.com

Product Features

Product Features

Email Management

Data Recovery No 
Email Archiving Yes 
Email Deletion No 
Email Discovery No 
Email Monitoring Yes 
Email Recall No 
Queue Manager Yes 
Response Management No 
Routing Yes 
Shared Inboxes No 
Signature Management No 
Spam Blocker No 
Whitelisting / Blacklisting Yes 

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