Secure Remote Access for Outlook Article. Thomas Shinder has recently published the following article over at www.msexchange.org:
Providing Secure Remote Access for the Full Outlook MAPI Client using the Exchange RPC Filter
Summary: You can allow remote Outlook 2000/2002/2003 clients to connect to your Exchange Server and take advantage of the full functionality provided by the Outlook MAPI client. Unlike Outlook Web Access, full Outlook MAPI client functionality allows remote users to take advantage of the entire set of mail and groupware features provided by Exchange Server. But you must do this securely. Check out this article to find out how. [MS Exchange Blog]