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Zimbra is a client and server platform for next-generation messaging and collaboration. Due to the setup process of Zimbra this is not a pre-configured Proxmox VE appliance yet but we describe the steps to install Zimbra on the Debian 4.0 Standard template. Zimbra is known to work well on OpenVZ.

This HowTo is based on the following Zimbra version: zcs-5.0.11_GA_2695.DEBIAN4.0.20081117055537.tgz

For more details: Zimbra

Creating a Debian Standard container

Create a Debian 4.0 Standard container with the following settings:

Memory and disk size

DNS setup

The hostname has to be set like this:

Do not forget to configure your DNS:

Customize the Debian software packages

Adapt your software repositories:

nano /etc/apt/sources.list

#Should look like this:

deb etch main contrib non-free
deb etch/updates main contrib non-free

Update your system:

apt-get update
apt-get upgrade

Check timezone settings:


Remove the already installed postfix:

apt-get remove postfix

Now, install some extra packages:

apt-get install sudo fetchmail libgmp3c2 libxml2 libltdl3 unzip p7zip-full lzop lzma arj zoo unzoo cabextract tnef nomarch bzip2 lha unrar rpm binutils

Zimbra installation

Download the latest Zimbra release for Debian 4 (32-bit).

wget  http://link_to_the_tgz/zcsfullfilename.tgz

Unpack the zip file:

tar xzvf [zcsfullfilename.tgz]

Change to the correct directory:

cd [zcsfullfilename]

And start the Zimbra installation script:


After you finished, you can use your web browser to configure Zimbra.

Documentation, optional commercial licenses and HowTo´s about Zimbra



If you plan to put high load on Zimbra, you should think of installing on 64-bit Ubuntu (grab this:

Here’s how to change the timezone on CentOS/RHEL

cp /usr/share/zoneinfo/Europe/Brussels /etc/localtime

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