Zimbra is an enterprise-class, open source email, calendar and collaboration platform. Zimbra simplifies IT with more efficient administration and flexible deployment options – both in the cloud or on premises. With the most innovative web application available, Zimbra boosts end user productivity on any device or desktop-any time, any place- at dramatically lower costs compared to other providers.

Designed for virtualization, Zimbra delivers faster provisioning and easier administration with built-in support for high availability, disaster recovery, backup and lifecycle management using VMware vSphere. Zimbra simplifies all of those critical functions through easy-to-use, web-based administration and enables organizations to deploy and manage email and collaboration with fewer resources, lower costs and less risk -- in the cloud or on premises.