Open Source Horde AlternativesWebMail Providers and other similar apps like Horde

Alternatives list

1. 

   

   Roundcube

    170 likes

   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, including MIME support, address book, folder manipulation, message searching and spell checking.

   27 Roundcube alternatives

   Cost / License

   • Free
   • Open Source

   Application types

   • WebMail Provider
   • Email Client

   Origin

   • Switzerland

   Platforms

   • Self-Hosted
   • PHP
   • Cloudron
   • Nextcloud

   

   

   

   +9

   

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   • Roundcube is the most popular Self-Hosted alternative to Horde.

   • Roundcube is the most popular Open Source alternative to Horde.

   • Roundcube is Free and Open SourceHorde is also Free and Open Source
2. 

   

   mailcow: dockerized

    45 likes

   mailcow is a mail server suite based on Dovecot, Postfix, SOGo, Rspamd and other open source software, that provides a modern Web UI for administration.

   23 mailcow: dockerized alternatives

   Cost / License

   • Free
   • Open Source

   Application types

   • Mail Server
   • WebMail Provider

   Origin

   • Germany
   • EU

   Platforms

   • Linux
   • Self-Hosted

   

   

   

   +3

   

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4. 

   

   Mailpile

    117 likes

   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 all code related to the project is and will be released under an OSI approved Free Software license.

   59 Mailpile alternatives

   Cost / License

   • Free
   • Open Source

   Application types

   • Email Client
   • WebMail Provider

   Alerts

   • Discontinued

   Platforms

   • Linux
   • Online
   • Self-Hosted
   • OpenPGP

   

   

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5. 

   

   Rainloop

    58 likes

   Simple, modern & fast web-based email client. Modest system requirements, decent performance, simple installation and upgrade, no database required. All these make RainLoop Webmail a perfect choice for your email solution.

   13 Rainloop alternatives

   Cost / License

   • Free
   • Open Source

   Application types

   • WebMail Provider
   • Email Client

   Origin

   • Estonia
   • EU

   Alerts

   • Discontinued

   Platforms

   • Online
   • Self-Hosted
   • Nextcloud
   • JavaScript
   • PHP
   • Cloudron

   

   

   

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6. 

   

   SOGo

    30 likes

   SOGo is groupware server with a focus on scalability and open standards.

   SOGo provides a rich AJAX-based Web interface and supports multiple native clients through the use of standard protocols such as CalDAV, CardDAV and GroupDAV.Share your calendars, address books and mails in.

   61 SOGo alternatives

   Cost / License

   • Freemium (Subscription)
   • Open Source

   Application type

   • WebMail Provider

   Origin

   • Canada

   Platforms

   • Linux
   • Online
   • Thunderbird
   • Cloudron

   

   

   

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7. 

   

   SnappyMail

    7 likes

   The drastically upgraded & secured fork of RainLoop Webmail Community edition.

   Cost / License

   • Free
   • Open Source

   Application type

   • Email Client

   Origin

   • Netherlands
   • EU

   Platforms

   • Self-Hosted
   • UNIX Web Browser
   • Cloudron

   

   More about SnappyMail  

   

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9. 

   

   Nexmail

    2 likes

   NexMail is an open-source, modern webmail client designed for self-hosted email servers. Enjoy a clean, intuitive interface with powerful features for managing your emails efficiently.

   27 Nexmail alternatives

   Cost / License

   • Free
   • Open Source

   Application types

   • WebMail Provider
   • Email Client

   Origin

   • Pakistan

   Platforms

   • Self-Hosted
   • PHP

   

   

   

   +8

   

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10. 

    

    grommunio

     3 likes

    grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.

    15 grommunio alternatives

    Cost / License

    • Freemium (Subscription)
    • Open Source

    Application types

    • Mail Server
    • Calendar App

    Origin

    • Germany
    • EU

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • iPad
    • Self-Hosted

    

    

    

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11. 

    

    Cypht

     10 likes

    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 one. And it's also a news reader :).

    Cost / License

    • Free
    • Open Source

    Application type

    • Email Client

    Origin

    • United States

    Platforms

    • Self-Hosted

    

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12. 

    

    Squirrelmail

     24 likes

    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 HTML 4.0 (with no JavaScript required) for maximum compatibility across browsers.

    Cost / License

    • Free
    • Open Source

    Application type

    • WebMail Provider

    Platforms

    • Self-Hosted
    • PHP

    

    More about Squirrelmail  

    

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13. 

    

    Webmail Lite

     17 likes

    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 application, which is fast and easy to use. Whether you need a free web browser based email client software for Windows ASP.

    Cost / License

    • Free
    • Open Source

    Application type

    • WebMail Provider

    Origin

    • United States

    Platforms

    • Online
    • Self-Hosted

    

    

    

    +2

    

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14. 

    

    iRedMail

     20 likes

    A fully fledged, free email server solution, an open source project (GPL v2).

    Use official binary packages from Linux/BSD distributions, with both i386 and x86_64 support.

    Easy, fast deployment in LESS THAN 1 MINUTE. View YouTube Video to check how easy it is.

    Works on both no.

    66 iRedMail alternatives

    Cost / License

    • Freemium (Pay once)
    • Open Source

    Application type

    • Mail Server

    Platforms

    • Linux
    • BSD
    • Self-Hosted

    

    More about iRedMail  

    

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