Open Source Zimbra Collaboration Suite Alternatives

    The best open source alternative to Zimbra Collaboration Suite is Roundcube, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to Zimbra Collaboration Suite and many of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Zimbra Collaboration Suite are mailcow: dockerized (Free, Open Source), Horde (Free, Open Source), iRedMail (Freemium, Open Source) and Kolab Community (Freemium, Open Source).

    The list of alternatives was last updated Jun 14, 2021

    Platforms

    • Linux
    • Online
    • Windows
    • Self-Hosted
    • Mac
    • Android
    • iPhone
    • Software as a Service (SaaS)
    • iPad
    • Android Tablet
    • BSD
    • Microsoft Office Outlook
    • S/MIME
    • DAVdroid
    • PHP
    • Cloudron
    • Java
    • Windows Phone
    • Chrome OS

    Features

    • Email Server
    • Real time collaboration
    • Calendar
    • CalDAV
    • CardDAV
    • Chat
    • File sharing
    • Team Collaboration
    • SMTP
    • Task Management
    • Support for WebDAV
    • POP3 Support
    • Project management
    • Shared calendars
    • Support for Docker
    • Online collaboration
    • Mobile Device Management
    • Group collaboration
    • Cloud based
    • Cloud Storage

    License

    × Clear
    • Free
    • Open Source
    • Paid
    All Filters

    Showing 10 of 20 alternatives