Modoboa
Mail hosting and management platform with web UI and webmail
3.5k stars 481 forks last commit first released ISC
Actively maintained
Last commit 26 Aug 2026.
Modoboa is an open source mail hosting and management platform that helps you deploy and operate a full email server through a modern web interface. It integrates common mail components (MTA/IMAP, filtering, reputation and policy features) around a central SQL database.
Key Features
- Web-based administration panel for domains, mailboxes, and aliases
- Integrated webmail with a simplified user interface
- Calendar and address book features
- Per-user mail filtering with Sieve and auto-reply messages
- Reputation and deliverability tooling including DNSBL checks and DMARC reporting
- Optional integrations for content filtering/quarantine workflows (for example via Amavis)
- Email traffic statistics and reporting dashboards
- Modular architecture via extensions for adding functionality
Use Cases
- Hosting email for a small business or organization with multiple domains and users
- Replacing third-party email providers while keeping a webmail-based workflow
- Providing managed mail services with admin and migration tooling
Modoboa is a practical choice for teams that want a unified UI to deploy, configure, and manage a standards-based mail stack while keeping control over data and policies.
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