Newbies What Next ? News Forums Calendar


News Sections
General News (3987/0)
Reviews (636/0)
Press Releases (465/0)
Distributions (197/0)
Software (906/1)
Hardware (537/0)
Security (192/0)
Tutorials (356/0)
Off Topic (181/0)

User Functions


Don't have an account yet? Sign up as a New User

There are no upcoming events



Zimbra Collaboration Suite (ZCS) is a groupware product developed by Zimbra Inc. The company was acquired by Yahoo! in September 2007.

Zimbra consists of both client and server components. Zimbra is available in three releases: an Open Source edition, Network Standard edition, and Network Professional edition. The free version is missing several features including Outlook synchronization, mobile synchronization, backup features, clustering features, and more.

The ZCS Web Client is a full-featured collaboration suite that supports email and group calendars using an Ajax web interface that enables tool tips, draggable items, and right-click menus in the User Interface.

ZCS is compatible with proprietary clients such as Microsoft Outlook and Apple Mail as well as the open-source Novell Evolution, so that mail, contacts, and calendar items can be synchronised from these to the ZCS server.

 ZCS 8

Free to download; for commercial version licenses are sold in blocks of 25 and priced on a sliding scale. For example, 75 Professional Edition mailboxes for a business are priced at /user/year


ZCS Server - Mozilla Public License
ZCS Web Client - Zimbra Public License

Zimbra Inc.


System Requirements
Evaluation and Testing
• Intel/AMD 32-bit or 64-bit CPU 1.5 GHz
• 1 GB RAM
• 5 GB free disk space for software and logs
• Temp file space for installs and upgrades*
• Additional disk space for mail storage
Production environments
• Intel/AMD CPU 32-bit 2.0 GHZ+.
For large deployments (more than 2000
users), 64-bit OS is recommended.
• Minimum - 2 GB RAM
Recommend - 4 GB
• Temp file space for installs and upgrades*
• 10 GB free disk space for software and
logs (SATA or SCSI for performance, and
RAID/Mirroring for redundancy)
• Additional disk space for mail storage

For Red Hat Enterprise, Fedora Core and
SuSE operating systems, the server must also
have the following installed:
• NPTL. Native POSIX Thread Library
• Sudo. Superuser, required to delegate admins.
• libidn. For internationalizing domain names in applications (IDNA)
• cURL. A command line tool for transferring files with URL syntax
• fetchmail. A remote-mail retrieval and forwarding utility used for on-demand TCIP/IP links.
• GMP. GNU Multiple-Precision Library.
• compat-libstdc ++-33. Compatibility Standard C++ libraries.
NOTE: The 32-bit version of the compatlibstdc rpm package is required for both 32-bit or 64-bit servers.
• For Red Hat Enterprise only: compatlibstdc++-296

Zimbra Wiki

Selected Reviews:, LinuxPlanet, blogspot,

Features include:

  • This PDF describes the different features of the three different editions

Return to Groupware Home Page | Return to Email Home Page

Zimbra also features in our 'Linux Equivalents to Windows Software' section. The category selector below allows you to filter the different types of software included in that separate article.


Bookmark and Share

Last Updated Sunday, April 26 2015 @ 05:34 AM EDT

We have written a range of guides highlighting excellent free books for popular programming languages. Check out the following guides: C, C++, C#, Java, JavaScript, CoffeeScript, HTML, Python, Ruby, Perl, Haskell, PHP, Lisp, R, Prolog, Scala, Scheme, Forth, SQL, Node.js (new), Fortran (new), Erlang (new), Pascal (new), and Ada (new).

Group Tests
All Group Tests

Top Free Software
5 Office Suites
7 Document Processors
6 Lean Desktops
6 Desktop Search
9 Project Management
9 Groupware Apps
14 File Managers
10 Databases
21 Backup Tools
21 DVD Tools
21 Window Managers
21 Productivity Tools
9 Terminal Emulators
21 Financial Tools
21 Text Editors
21 Video Emulators
21 Home Emulators
42 Graphics Apps
6 CAD Apps
42 Scientific Apps
10 Web Browsers
42 Email Apps
12 Instant Messaging
10 IRC Clients
7 Twitter Clients
12 News Aggregators
11 VoIP Apps
11 Remote Display Apps
42 Best Games
42 More Games
21 More Games
21 Notable Games (1)
21 Notable Games (2)
21 Notable Games (3)
8 ASCII Games
9 Educational Games
42 Audio Apps
42 Video Apps
6 Screencasting Apps
80 Security Apps
9 System Monitoring
6 Family History Apps
11 PDF Tools
6 Music Servers
6 Collection Managers
7 Calculator Apps
8 Geometry Apps
Free Console Apps
14 Multimedia
8 Compilers
9 IDEs
9 Debuggers
7 Revision Control Apps
6 Doc Generators
'Free' Proprietary
21 Closed-Source Apps
Top Commercial Apps
42 Games
Free Web Software
21 Web CMS
14 Wiki Engines
8 Blog Apps
6 eCommerce Apps
5 Human Resource Apps
10 ERP
10 CRM
6 Data Warehouse Apps
8 Business Intelligence
6 Point-of-Sale

All Group Tests

Other Articles
Migrating from Windows
Back up your data
Distribution Guide
Distro Portal Pages
20 Free Linux Books
Running Linux Under Windows

Older Stories
Friday 03/06
  • Raspberry Pi 2 review (0)

  • Sunday 02/22
  • Chess in a Few Bytes (0)
  • Learn the Art of Computer Programming With These Great Free Beginner Books (2)
  • CD Audio Grabbers (0)

  • Monday 01/19
  • fitlet is a tiny fanless PC full of openness (0)

  • Sunday 01/18
  • MintBox Mini gives Linux users a pocket-sized PC (0)
  • 6 Invaluable Assembly Books (0)

  • Wednesday 01/14
  • Why Mac users don’t switch to Linux (0)
  • MIPS Creator CI20 review (0)

  • Tuesday 01/13
  • Getting a Time Without NTP (0)

  • Vote

    What Linux distribution do you run on your main computer?

    633 votes | 3 comments

    Built with GeekLog and phpBB
    Comments to the webmaster are welcome
    Copyright 2009 - All rights reserved