Zimbra Collaboration Server - Open Source Edition

Zimbra Collaboration Server (ZCS) Open Source Edition is available for you to test, evaluate, deploy, customize, and improve. In doing so, we hope you will participate in the Zimbra Community, so that we can work together to make ZCS a better product for everyone. It is free in perpetuity (providing you comply with the associated Zimbra Licensing Terms). It does not include Zimbra Support or software subscription.

The ZCS Open Source Edition software is provided in source code and binary formats:

  • Use the ZCS software in source code format (under the terms of this Zimbra Public License (ZPL) if you want to modify the software and create your own binaries (example: porting ZCS to a new platform)
  • If you do not want to change the code or build your own binaries, use the ZCS Open Source Edition binary distributions instead (licensed under the terms of Zimbra Public End-user License Agreement (EULA); these are simpler to get up and running, and you are still free to redistribute unmodified copies

If you have questions about which ZCS product edition is best for you, or wish to purchase a subscription plus support to the ZCS Network Edition, please contact us.

More Tips:

  • Can I revert the Network Edition Trial to the Open Source Edition? Absolutely, all your email data, etc. will be left intact if you choose not to purchase ZCS Network Edition
  • ZCS server downloads are intended for administrators and developers. (Confused? Please see What Version of Zimbra is Right for Me?)
  • First time installing? Use the latest 64-bit platform where possible on your new systems.

Latest releases of Zimbra Collaboration Suite Open Source Edition


8.0.7 GA Release Release Notes & Upgrade Instructions | 3rd Party Open Source Licenses | Windows Open Source Licenses
Platform Download 64-bit
Red Hat Enterprise Linux 6
CentOS 6
64bit x86 (MD5)
SUSE Linux Enterprise Server 11 64bit x86 (MD5)
Ubuntu 10.04 LTS 64bit x86 (MD5) DEPRECATED
Ubuntu 12.04 LTS 64bit x86 (MD5)
7.2.7 GA Release Release Notes |3rd Party Open Source Licenses
Platform Download 64-bit Download 32-bit
Red Hat Enterprise Linux 6 64bit x86 (MD5)  
Red Hat Enterprise Linux 5 64bit x86 (MD5) DEPRECATED 32bit x86 (MD5) DEPRECATED
Red Hat Enterprise Linux 4 64bit x86 (MD5) DEPRECATED 32bit x86 (MD5) DEPRECATED
Ubuntu 10.04 LTS
Ubuntu 8.04 LTS 64bit x86 (MD5) DEPRECATED 32bit x86 (MD5) DEPRECATED
SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Server 10 64bit x86 (MD5) DEPRECATED 32bit x86 (MD5) DEPRECATED
Debian 5 64bit x86 (MD5) DEPRECATED 32bit x86 (MD5) DEPRECATED
Fedora 13 64bit x86 (MD5) DEPRECATED  
Fedora 11 64bit x86 (MD5) DEPRECATED 32bit x86 (MD5) DEPRECATED

Source Code: Building Zimbra using Perforce

Important information about Support Life Cycle and Export Restrictions

Platforms marked DEPRECATED will End of Life (EOL) in the next major release and no longer be made available