Zimbra is open source server software with tools to foster collaboration. The program includes tools for the management of email, groepskalenders, contacts, instant messaging, file storage and online document management.
Zimbra Collaboration Suite (ZCS) is an open source software on a Linux or Mac OS X server can be installed.
By making contact with the server, end users can have their email, contacts, calendars, and managing documents. This can be done via the AJAX Web Client which, by default is first installed, a POP/IMAP email client, mobile device, Microsoft Outlook and Apple desktop client such as iCal.
Zimbra has the following characteristics:
Zimbra screenshots
You can free download Zimbra 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.