Mercury Mail Transport System Alternatives & Competitors

hMailServer is a free e-mail server for Microsoft Windows.

Key hMail Server features:

Free and Open Source Cross-Platform Compatibility Wide Protocol Support Built-in Anti-Spam and Anti-Virus

Postfix is a mail transfer agent (MTA) that routes and delivers electronic mail.

Key Postfix features:

Security Performance Compatibility Reliability

Anything blends AI and human support to detect, delegate, and complete your tasks before they even reach your to-do list.

Key Anything.so features:

Proactive Task Detection One-Swipe Delegation Human + AI Assistant Squad

Visit website freemium €99.0 / Monthly

A fully fledged, free email server solution, an open source project (GPL v2).

Key iRedMail features:

Open Source Comprehensive Features Easy Installation Excellent Documentation

Open Source

MailEnable is a Windows based mail server and email server program that is packed with the state of the features and functions like antivirus and spam filtering system, webmail management system, cardDAV, CalDAV and much more.

Key MailEnable features:

Comprehensive Feature Set Scalability Integration and Compatibility Cost-Effectiveness

qmail is the name of an advanced level of mail transfer agent for the UNIX based operating systems.

Key qmail features:

Security Performance Reliability Modular Design

PowerMTA is an industrial-strength software for high-volume email delivery.

Key PowerMTA features:

High Deliverability Scalability Advanced Analytics Customization

An open source mailserver suite.

Key mailcow features:

Comprehensive Feature Set Open Source Docker-based Deployment Active Community and Support

Open Source

The magma server daemon is an encrypted email system with support for SMTP, POP, IMAP, HTTP and MOLTEN.

Axigen is an integrated email, calendaring & collaboration platform, built on a Linux mail server technology.

Key Axigen features:

Integration Capabilities Security Features Cross-Platform Support User-Friendly Interface

KerioConnect is a commercial mail and groupware server.

Key Kerio Connect features:

Cross-Platform Support Ease of Setup Integrated Security Features Mobile Device Support

Microsoft Exchange Server is a messaging and collaborative software product developed by Microsoft.

Key Microsoft Exchange Server features:

Integration Security Scalability Mobility

Zimbra is trusted by over 500 million users to increase productivity with a complete set of collaboration tools while maintaining total control over security and privacy.

Key Zimbra features:

Open Source Cost-Effective Scalability Feature-Rich

Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with...

Key Dovecot features:

High Performance Robust Security Features Easy Configuration Extensive Protocol Support

Open Source