Alternatives to Rainloop for Linux with any license


Web / Online

Show 7 less popular platforms
  • Mailpile icon


    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 OS X Windows Linux Web Self-Hosted ... OpenPGP

  • Postaci icon


    Postaci (Turkish for Postman) is multiplatform Webmail software which is database independent, multilanguage, POP3/IMAP, and fully MIME-compatible. While using POP3 mode...

    Free Open Source Linux

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