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Average Ratings 4 Ratings

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ease
features
design
support

Description

Hermes SEG is an open-source and free secure email gateway and server that offers robust protection against spam, viruses, and malware through tools like SpamAssassin, ClamAV, and Amavisd-new. It ensures complete encryption both in transit and at rest, utilizing protocols such as SMTP TLS, S/MIME, PGP, and encrypted PDF (CipherMail), alongside Dovecot mail-crypt. The solution also provides features for email archiving and integrated mailbox hosting, which includes options like quotas, aliases, shared folders, Sieve rules, vacation replies, and mobile auto-configuration. Users can benefit from collaboration functionalities via Nextcloud, which encompasses webmail, file synchronization, calendars, and contacts. Identity and access management is streamlined with OpenLDAP and Authelia, accommodating single sign-on (SSO) and multi-factor authentication (MFA) options such as TOTP, WebAuthn, and Duo. Additionally, it adheres to contemporary authentication standards including SPF, DKIM, DMARC, and ARC, ensuring a secure email experience for all users. By combining these features, Hermes SEG stands out as a comprehensive solution for secure email communication.

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

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

Ongage
Postmastery
Prometheus

Integrations

Ongage
Postmastery
Prometheus

Pricing Details

$0/month/user
Free Trial
Free Version

Pricing Details

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

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Black Fish Networks LLC

Country

United States

Website

www.hermesseg.io

Vendor Details

Company Name

Kumo Corp

Founded

2023

Country

United States

Website

kumomta.com

Product Features

Secure Email Gateway

Anti-Malware
Archiving
Customizable
Data Loss Prevention
End-to-End Encryption
Real-time Dashboards
Reporting / Analytics
Sandbox
Threat Protection

Product Features

Email Management

Data Recovery
Email Archiving
Email Deletion
Email Discovery
Email Monitoring
Email Recall
Queue Manager
Response Management
Routing
Shared Inboxes
Signature Management
Spam Blocker
Whitelisting / Blacklisting

Alternatives

Alternatives

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