Zimbra Collaboration Suite Network Professional Edition - subscription license ( 1 year )

Zimbra Collaboration Suite - Professional Edition Government (excluding U.S. Federal) or Non-Profit (1 year subscription, 25 mailbox pack, Zimbra Mobile and Archiving & Discovery included, Advantage Support included) 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.