Best Self-hosted Email Products in 2026

An open source mailserver suite.

Key mailcow features:

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

Open Source

A unified, OpenAI-compatible gateway to every major LLM provider. One endpoint, one key, one bill - with automatic routing and failover.

Key boldrouter features:

AI-Powered Routing Automation Capabilities Scalable for Growing Teams Integration Potential

Visit website

Mail-in-a-Box provides webmail and an IMAP/SMTP server for use with mobile devices and desktop mail software and also includes contacts and calendar synchronization.

Key Mail-in-a-box features:

Ease of Setup Full Control Cost-effective Open Source

Open Source

Full featured email server built in docker with free plan.

Key Poste.io features:

User-Friendly Interface Comprehensive Features Quick Setup Open Source

Modoboa is a mail hosting and management platform including a modern and simplified Web User Interface.

Key Modoboa features:

Open Source Integration User-Friendly Interface Mail Security

Mailu is a simple yet full-featured mail server as a set of Docker images.

Key Mailu features:

Open Source Lightweight Modularity Docker-based Deployment

Web-based IMAP email client.

Key Roundcube features:

Open Source User-Friendly Interface Extensibility Security

Open Source

Self hosted modern mail server.

Key WildDuck features:

Open Source Modern Protocol Support Scalability Multi-domain Support

Open Source

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases.

Key Postfix Admin features:

User-Friendly Interface Virtual Domain Management Feature Rich Open Source

Simple, easy and secure mail server with a convenient and simple interface.

Key Emails features:

Cost-Effective Instant Delivery Wider Reach Easy to Document

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

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

Open-Xchange Server 6 is the most advanced Linux based Groupware solution f.

Key OX Open-Xchange features:

Open Source Integrated Suite Scalability Flexibility

Eudora Internet Mail Server is a highly advanced internet mail system that supports the all kind of email systems and clients either it is IMAP, POP3, SMTP and much more.

Key Eudora Internet Mail Server features:

User-Friendly Interface Robust Security Features Flexible Configuration Options Reliable Performance