Microsoft Exchange Server 2007 provides a reliable messaging system, with built-in protection against spam and viruses. Using Exchange 2007, users throughout your organization can access e-mail, voice mail, calendars, and contacts from a wide variety of devices and from any location.
In Exchange Server 2007, you can install the Client Access server role on your Microsoft Exchange Server 2007 computer. The Client Access server role provides access to the following client applications and protocols:
Microsoft Outlook Web Access
Post Office Protocol version 3 (POP3)
Internet Messaging Application Protocol version 4 (IMAP4)
You can take advantage of a richer feature set in Outlook by using Microsoft Office Outlook 2007 with the latest version of Microsoft Exchange Server. Features of Office Outlook 2007 that work better with Microsoft Exchange 2007 include scheduling meetings, Offline Address Book (OAB) downloads, automatic configuration of Exchange server accounts, and enhanced Out of Office functionality.