MailuInsular email distribution - mail server as Docker images

Mailu

Mailu is a complete, open-source mail server solution packaged as Docker images. It provides a simple yet feature-rich way to host your own email infrastructure with zero proprietary components.

Key Features

• Standard Email Protocol Support: Full IMAP, IMAP+, SMTP, and Submission support with automatic client configuration profiles
• Security & Compliance: Enforced TLS, DANE, MTA-STS, DKIM signing, anti-virus scanning, and email authentication (DMARC, SPF)
• User Management: Aliases, auto-reply, auto-forward, email forwarding from external accounts, and ManageSieve support
• Administration: Web-based admin interface with global admin controls, per-domain delegation, user quotas, and announcements
• Advanced Features: Full-text search of email attachments, custom routing, greylisting, anti-spoofing, and malicious attachment blocking
• Web Access: Multiple webmail options and comprehensive administration dashboard

Use Cases

• Organizations: Run a complete mail server infrastructure without relying on third-party email providers
• Privacy-Conscious Users: Host email with full control and no external tracking or data collection
• Small Business: Maintain professional email hosting with domain-level control and advanced security features
• Development & Testing: Deploy mail servers easily in Docker containers for testing and staging environments

Who Is It For

Mailu is ideal for system administrators, organizations, and individuals who want complete control over their email infrastructure. It's designed for those who value privacy, prefer open-source solutions, and have the technical capability to self-host and maintain a mail server.