Also, our unique open source Zimlet technology makes it easy for you to include custom 'mash-ups' in the ZCS web client.

ZCS also includes an elegant Ajax based Admin Interface plus full scripting tools to manage the ZCS server.

Full support is provided for standards-based APIs (IMAP / POP / iCal / CalDAV) as well as MAPI and iSync, which enable seamless compatibility with other clients like Microsoft Outlook, Apple desktop suite, and Mozilla Thunderbird.

Zimbra also offers Zimbra Mobile, which provides over-the-air "push" synchronization to smartphones as well as a Connector for BlackBerry Enterprise Server.

The Zimbra solution also has a complete high security package including built-in anti-spam and anti-virus scanning.

Now Zimbra also features Archiving and Discovery, an optional component to save and search email for various compliance issues.