Alternatives to Rainloop for all platforms with any license

Platforms

Web / Online

Show 6 less popular platforms
  • Mailpile 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...

    Open Source Mac Windows Linux Web / Cloud Self-Hosted

  • Roundcube icon

    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...

    Open Source Self-Hosted PHP Cloudron

    No features added Add a feature
  • Squirrelmail 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...

    Open Source Self-Hosted PHP

    No features added Add a feature
  • Horde 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...

    Open Source Web / Cloud

    No features added Add a feature
  • Atmail Email Server icon

    Atmail Email Server

    Atmail webmail system offers a webmail client, email server platform and mailserver appliance for Linux, Unix and Windows. Features: Webmail Calendar Addressbook ...

    Commercial Linux Web / Cloud

  • Cypht

    All your E-mail, from all your accounts, in one place. Cypht is like a news reader, but for E-mail. Cypht does not replace your existing accounts - it combines them into...

    Open Source Self-Hosted

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