What is Zimbra?

Zimbra Collaboration is an enterprise-class solution for company collaboration with email, calendar, and file-sharing tools. Zimbra community provides a private social networking space and online community, a place for customer support, with online knowledge bases and other helpful documentation. Two versions of Zimbra are currently available: The Open-Source version and the Professional version. It also comes along with a Zimbra Web Client, which supports email and group calendars for aligning mails and Video Conferencing necessary for every company to function collectively.