Zimbra Collaboration Suite is an enterprise-class open source email,
calendar and collaboration server. With the most innovative web
application available today, Zimbra boosts the productivity of users on
any desktop and dramatically reduces TCO compared to legacy platform
vendors.
Other key advantages include advanced compatibility with existing
desktop email clients, over-the-air sync to smartphones (iPhone,
Android, BlackBerry) as well as better server scalability and more
efficient administration.
Zimbra is the leading open source solution for enterprise, service
provider, education, and government environments; offering end-users
unmatched benefits.
Ajax based web collaboration is at the heart of ZCS. The powerful web
client can integrate email, contacts, shared calendar, VoIP, and online
document authoring into a rich browser-based interface.