Software Alternatives, Accelerators & Startups

Modoboa

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

Some of the top features or benefits of Modoboa are: Open Source, Integration, User-Friendly Interface, Mail Security, and Scalability. You can visit the info page to learn more.

Best Modoboa Alternatives & Competitors in 2025

The best Modoboa alternatives based on verified products, community votes, reviews and other factors.
Filter: 12 Open-Source Alternatives. Latest update:

  1. 39

    An open source mailserver suite.

    Key mailcow features:

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

    Open Source

    /mailcow-alternatives
  2. 33

    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

    /mail-in-a-box-alternatives
  3. The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder. .

    Key MailReach.co features:

    Deliverability Improving Email Warming Meaningful Warming Content Smart Warming Algorithm

    Visit website paid $19.5 / Monthly (Pro)

    Visit website
  4. 27

    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

    /iredmail-alternatives
  5. 20

    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

    /zimbra-alternatives
  6. 24

    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

    /mailu-alternatives
  7. 18

    Web-based IMAP email client.

    Key Roundcube features:

    Open Source User-Friendly Interface Extensibility Security

    Open Source

    /roundcube-alternatives
  8. 26

    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

    /postfix-admin-alternatives
  9. 18

    Self hosted modern mail server.

    Key WildDuck features:

    Open Source Modern Protocol Support Scalability Multi-domain Support

    Open Source

    /wildduck-alternatives
  10. 16

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

    Key OX Open-Xchange features:

    Open Source Integrated Suite Scalability Flexibility

    /ox-open-xchange-alternatives
  11. 14

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

    Key Postfix features:

    Security Performance Compatibility Reliability

    /postfix-alternatives
  12. 22

    Full featured email server built in docker with free plan.

    Key Poste.io features:

    User-Friendly Interface Comprehensive Features Quick Setup Open Source

    /poste-io-alternatives
  13. 12

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

    Key Emails features:

    Cost-Effective Instant Delivery Wider Reach Easy to Document

    /emails-alternatives
  14. 17

    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

    /axigen-alternatives
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