Alternatives to Rainloop for Self-hosting with any license

  • Roundcube

    Roundcube webmail is a browser-based multilingual IMAP client with an application-like user interface. It provides full functionality you expect from an e-mail client...

    Free Open Source Self-Hosted PHP Cloudron

    Roundcube icon
  • Mailpile

    Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and...

    Free Open Source Mac Windows Linux Web Self-Hosted ... OpenPGP

    Mailpile icon
  • Squirrelmail

    SquirrelMail is a standards-based webmail package written in PHP. It includes built-in pure PHP support for the IMAP and SMTP protocols, and all pages render in pure...

    Free Open Source Self-Hosted PHP

    Squirrelmail icon
  • Horde

    Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards...

    Free Open Source Web Self-Hosted

    Horde icon

Platforms

Web / Online

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