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.
Germany
EU
+3
Horde AlternativesOnly Open Source apps categorised as Mail Servers
The best open source Mail Server alternative to Horde is mailcow: dockerized. If that doesn't suit you, our users have ranked more than 25 alternatives to Horde and five of them are open source Mail Servers so hopefully you can find a suitable replacement. Other interesting open source Mail Server alternatives to Horde are grommunio, iRedMail, EGroupware and OBM.
Alternatives list
- 23 mailcow: dockerized alternatives
15 grommunio alternativesgrommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.
Cost / License
- Freemium
- Open Source
Application types
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Self-Hosted
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.
Web-based team collaboration suite combining email client, calendar, contact and task tools, CRM, project and file management, file sharing, trouble tickets, Rocket.Chat chat, and Collabora online editing. Offers open source, self-hosted, and SaaS options.
Cost / License
- Freemium
- Open Source (GPL-2.0)
Application types
Platforms
- Linux
- Online
- Self-Hosted
- Software as a Service (SaaS)
+6
OBM is a free messaging and collaboration platform useful for just a couple to many thousands of users with strong support for mobile devices.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Linux
