If you are looking for training and support for Zimbra collaboration software, do let us know through our help desk.

Zimbra included open source projects, The ZCS Server utilizes open source projects such as:

* Postfix
* MySQL
* OpenLDAP
* Apache Tomcat (replaced by Jetty since 5.0)
* Lucene
* Verity
* ClamAV
* SpamAssassin
* AMaViS and Amavisd-new
* DSPAM
* Aspell
* James
* Sieve
* Perdition mail retrieval proxy (until 4.5)
* nginx (since 5.0)