OS X Mountain Lion Bible

Summary

OS X comes with Microsoft's ActiveSync technology, which enables direct connections between Microsoft's Exchange Server 2007 or 2010 and OS X's Mail, Calendar, Contacts, Reminders, and Notes applications. If you use an earlier version of Exchange Server, you can still sync Mail to it via an Exchange IMAP connection, and sync Calendar Contacts, Reminders, and Notes to it using Microsoft's Entourage 2008 client application as a way station.

If you use an iPhone, iPad, or iPod Touch, you can set it to synchronize wirelessly to an Exchange server with Mail, Calendar, Contacts, Reminders, and Notes.