In addition to having multiple operating systems to choose from, you also have several choices for Exchange clients. Exchange clients can be broken down into four categories.
MAPI clients: This includes Microsoft Office Outlook 2003, Microsoft Outlook 2002, and Microsoft Outlook 2000.
Web-based clients: There are two types of clients for OWA, the Web-based clients for Exchange: Premium clients that run Internet Explorer 5.01 or later and Basic clients that run all other browsers.
Mobile clients: This includes OMA clients, such as Pocket PC 2002, and Exchange Server ActiveSync clients.
Internet protocol clients: This includes POP3, IMAP4, and NNTP clients, such as Microsoft Outlook Express.
The following subsections ...