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VMware Zimbra Collaboration Server

Zimbra Collaboration Server (ZCS) is an email and calendar server plus much more; think about it like a next-generation Microsoft Exchange server. In addition to email and calendar, it provides document storage and editing, instant messaging, and simplified administrative controls all in an award winning webmail user interface built with the latest AJAX web technology. ZCS also provides mobility and syncs to desktop client applications; the server is deployed on commodity Linux hardware.

There are several versions of ZCS to choose from:

  • ZCS Open Source Edition (free)
  • ZCS Network Edition

To read more check out our ZCS brochure. You can also watch a Zimbra video tour or instantly test drive a sample account.

VDS Server Requirements

The following is a guideline for Single Server Installations. In a single-server installation, all components are installed on one server and require no additional manual configuration.

Installation Type
Small (1-50 Users) 1 CPU Core 2GB RAM Starting from 20GB
Midsize (500 or less users) 2 CPU Core 4GB RAM Starting from 40GB
Large (Up to 1000 Users) 4 CPU Core 8GB RAM Starting from 80GB

Multi server install

VMware Zimbra Collaboration Server is comprised of 12 core components which can be distributed over a number of servers to allow your ZCS to scale from a very small business with less than 25 accounts to a large business with thousands of email accounts. The following tables show examples of different configuration options.


  • All ZCS components installed on one server


  • Zimbra LDAP and Zimbra message store on one server
  • Zimbra MTA on a separate server.
  • Possibly include additional Zimbra MTA servers


  • Zimbra LDAP on one server
  • Multiple Zimbra mailbox servers
  • Multiple Zimbra MTA servers
  • One or more Zimbra Proxy servers

Very Large

  • Zimbra Master LDAP server
  • Replicas LDAP servers
  • Multiple Zimbra mailbox servers
  • Multiple Zimbra MTA servers
  • Multiple Zimbra Proxy servers

Zimbra Desktop

Many ask the questions, “How can I get the Zimbra experience if I do not have a Zimbra Collaboration Server email account?” or “Is there a way to use the Zimbra AJAX web interface offline like I can with Outlook or Thunderbird?” The answer is Zimbra Desktop, a downloadable application for Windows, Mac and Linux computers that lets you read any email account (you don’t have to be a Zimbra customer), all in a Zimbra look-and-feel. It works even when you are not online (a handy trick on airplanes).

Zimbra Desktop can be compared to Mozilla Thunderbird or Microsoft Outlook, and combines the best qualities of these email clients. In addition to providing you a great Zimbra experience it:

To read more check out our Desktop page or download Desktop now for free.

  • Manages email, contacts, calendar, files and documents
  • Works with any POP / IMAP email account
  • Automatically syncs Zimbra, Yahoo! and Google email, contacts, and calendars
  • Is free


What are Cloud Servers?

Cloud Servers are Virtual Machines that run on Web24 Public Cloud Infrastructure. Cloud Servers come in a wide range of flavours such as Windows, Linux, Ubuntu, Centos, Debian and more...

In addition to Cloud servers, we provide Cloud Dedicated Servers (a stepping stone to your own Private Cloud) and full Private Clouds with dedicated access

Private Clouds for enterprise customers provide

  • Isolated and dedicated cloud infrastructure (hardware)
  • Highly available, self healing and geo-diverse Virtual Machines
  • Unlimited VM creation
  • Full cloud management suite
  • Disaster Recovery
Not sure what’s right for you? To find a solution that best suits your needs Enquire Today

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