Kerio Connect delivers full Mac support – server side and client side.

Outlook or Entourage. The choice is yours.
Kerio Connect now provides full native support for Microsoft Outlook 2011 for Mac. Macintosh users can now confidently upgrade to Office 2011 for Mac and successfully use Outlook 2011 in Exchange mode. And of course Kerio Connect maintains full support for Microsoft Entourage 2004 and 2008.

Native Apple Clients Because Kerio Connect supports a wide range of protocols including CalDAV and CardDAV, Mac users can configure Apple Mail, Apple iCal, and Apple Address Book to sync emails, calendars, and contacts directly with Kerio Connect.

Mac OS X Server
Since Kerio Connect is completely platform agnostic, it is the best messaging server solution for all Mac and mixed Mac & Windows environments. Organizations running Mac OS X Server as their infrastructure platform are delighted to find that Kerio Connect supports all flavors of Mac OS X running on Intel chipsets.
Mac system administrators will enjoy the flexibility to use Open Directory, Active Directory, or the built-in Kerio user directory for centralized directory service and user management.
And since Kerio Connect can integrate with Active Directory or use its own built-in Kerio user directory, users can access and view contact information of everyone in the corporate directory, using the Global Address List (GAL).

Your mobile team
Kerio Connect allows users to wirelessly synchronize their email, calendars, contacts, tasks, notes and even public and shared folders over the air with their iPhone, iPad, iPod Touch or virtually any other mobile device.