Microsoft® Office 2003 Editions Resource Kit

Microsoft Exchange Server Support for Outlook 2003

Microsoft Office Outlook 2003 works well with a variety of e-mail servers, but you can take advantage of a richer feature set by using Outlook with the latest version of Microsoft Exchange Server. Some Outlook 2003 features require certain Exchange versions (and, in some cases, specific Exchange configurations running on certain versions of Microsoft Windows), while other features simply work better with newer versions of Exchange.

Several features of Outlook 2003 work best with Microsoft Exchange Server 2003 or later, especially for mobile users accessing their mailboxes over slower connections. This is apparent for the new remote procedure call (RPC) over HTTP feature, which enables users ...