Open Source Zimbra Collaboration Suite AlternativesMail Servers & Team Collaboration Tools like Zimbra Collaboration Suite
The best open source alternative to Zimbra Collaboration Suite is Roundcube. If that doesn't suit you, our users have ranked more than 25 alternatives to Zimbra Collaboration Suite and 19 is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Zimbra Collaboration Suite are Nextcloud Hub, mailcow: dockerized, Kolab Community and Carbonio.
- Mail Server
- Freemium • Open Source
- 26 Roundcube alternatives
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.
License model
- Free • Open Source
Application types
Country of Origin
Switzerland
Platforms
- Self-Hosted
- PHP
- Cloudron
Roundcube Features
Comments about Roundcube as an Alternative to Zimbra Collaboration Suite
- 51 Nextcloud Hub alternatives
Nextcloud is the most deployed on-premises file share and collaboration platform. Access & collaborate across your devices. As fully on-premises solution, Nextcloud Hub provides the benefits of online collaboration without the compliance and security risks.
License model
- Free • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Self-Hosted
- 22 mailcow: dockerized alternatives
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.
License model
- Free • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Linux
- Self-Hosted
Top mailcow: dockerized Features
- 47 Kolab Community alternatives
Kolab is entirely Free and Open Source Software (a.k.a. FOSS), and uses Open Standards. We’ll get to why this is important to us, and hope that it is important to you thereafter.
License model
- Freemium • Open Source
Application types
Country of Origin
Switzerland
Platforms
- Linux
- Online
- Self-Hosted
Kolab Community Features
- 7 Carbonio alternatives
Carbonio Community Edition (Carbonio CE) is a free and open-source (FOSS) email and collaboration platform designed by Zextras. It is a complete email solution, allowing organizations to maintain digital sovereignty through on-premises self-hosted servers, ensuring privacy and...
License model
- Free • Open Source
Country of Origin
Italy
EU
Platforms
- Online
- 12 grommunio alternatives
grommunio (formerly known as grammm) efficiently combines all requirements of modern, digital communication and collaboration.
License model
- Freemium • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Mac
- Windows
- Linux
- Online
- Android
- iPhone
- iPad
- Self-Hosted
- 42 Horde alternatives
Horde Groupware is a free, enterprise ready, browser based collaboration suite. Users can manage and share calendars, contacts, tasks and notes with the standards compliant components from the Horde Project.
DiscontinuedThe last release (5.2.22) was in September 2017.
Horde Features
Kolab Now provides a suite of intuitive apps in a user friendly environment to make your day to day online comms easier, smarter and most importantly; secure.
License model
- Paid • Open Source
Application types
Country of Origin
Switzerland
Platforms
- Online
- Software as a Service (SaaS)
- DAVx5
- 19 OX App Suite alternatives
The OX App Suite by Open-Xchange is web-based platform offering a suite of apps like an email client, calendar, contacts magement, cloud storage with synchronization and productivity apps for word processing, spreadsheets and presentations.
License model
- Free • Open Source
Application types
Country of Origin
Germany
EU
Platforms
- Linux
- Online
- Self-Hosted
- Software as a Service (SaaS)
OX App Suite Features
- 67 iRedMail alternatives
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.
OpenChange aims to provide a portable Open Source implementation of Microsoft Exchange Server and Exchange protocols.
DiscontinuedLast release is from 2015
OpenChange Features
Is a collaboration suite (messaging and groupware). It is designed to run on open source operating systems such as Linux or BSD. In order to modernize the Citadel platform for the Internet, the Citadel/UX developers added functionality such as shared calendars, instant...
Citadel Features
Roudcube is only web mail client not groupware solution like Zimbra