Alternatives to Postaci for all platforms with any license

Platforms

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  • 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...

    Free Open Source Self-Hosted PHP Cloudron

  • 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...

    Free Open Source Mac Windows Linux Web Self-Hosted

  • Rainloop icon

    Rainloop

    Simple, modern & fast web-based email client. Modest system requirements, decent performance, simple installation and upgrade, no database required. All these make...

    Free Open Source Self-Hosted JavaScript PHP Cloudron

  • 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...

    Free Open Source Web Self-Hosted

  • 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...

    Free Open Source Self-Hosted PHP

  • Webmail Lite icon

    Webmail Lite

    Open Source WebMail Lite is a free community edition of full-featured WebMail Pro server application intended for users who need a clean and simple web mail...

    Free Open Source Web Self-Hosted

    No features added Add a feature
  • CacoCloud

    A simple, fast and secure PHP/AngularJS based single user feed and mail reader, password and bookmark manager. CacoCloud is divided into a RESTful PHP backend storing...

    Free Open Source Self-Hosted AngularJS

    No features added Add a feature
  • NaSMail icon

    NaSMail

    NaSMail 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 HTML 4.01...

    Free Open Source Web

    No features added Add a feature
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  • nvlope icon

    nvlope

    Simple and minimal email with custom domain and own API.

    Commercial Mac Windows Linux

    No features added Add a feature
    • Discontinued Website down, twitter deleted.
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