z-Push and zimbrabackend: The Zimbra companion for Mobility.


October 16, 2012 by aubreykloppers

from the z-Push webpage:


Mobile data synchronization is becoming increasingly important for many people, and various standards have arisen to perform this two-way copying ‘over-the-air’. The most important platforms that can do wireless synchronisation are ActiveSync that is used to communicate with Exchange Server and Research-in-Motion’s BlackBerry Enterprise Server (BES). Both solutions require proprietary server-side software from the vendor, therefore limiting the use of PIMs (personal information managers) to either wired synchronization or irritating 3rd-party synchronizers requiring the installation of client software on the PDA.

steps to get z-Push and zimbrabackend to work:

To get this working on the same server as Zimbra is not suggested.  Rather create a new LAMP server viewable from the Internet.  Using VM to achieve this is the best.

  • Download and install a LAMP Server from Turnkey:


  • Download and install z-Push 2.0.4: (I installed it in /var/www/z-push24)


  • Download and install zimbrabackend (z-push-2) – I saved all the files to a new directory in /var/www/z-push24/backend/zimbra/


  • Move root server of your WWW (/etc/apache2/sites-available/default):

<VirtualHost *:443>
SSLEngine on
SSLCertificateFile /etc/ssl/certs/cert.pem
ServerAdmin webmaster@localhost
DocumentRoot /var/www/z-push24/

  • Edit your /var/www/<z-push dir>/config.php file:

define(‘BACKEND_PROVIDER’, “BackendZimbra“); #CHANGE this entry to read “Zimbra”
define(‘ZIMBRA_URL’, ‘https://<YOUR INTERNAL ZIMBRA IP ADDRESS>‘); # Update with you Zimbra server hostname
define(‘ZIMBRA_USER_DIR’, ‘zimbra’);
define(‘PROVISIONING’, false); #CHANGE this entry to read “false”


  • Create a server viewable from the internet.  (i.e. z-push.domain.com)
  • Create a NAT/Firewall rule to allow port 443 traffic to flow unhindered.
  • READ, Read, read…

One thought on “z-Push and zimbrabackend: The Zimbra companion for Mobility.

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