I saw this post researching rpc over http, it may be helpful I overlooked a simple solution earlier. On the 'Exchange Proxy Settings' tab I can uncheck the 'On fast networks, ...' option and Outlook will then try connecting via TCP/IP first when connected to a fast network. If it fails to connect via TCP/IP it will then try via HTTPS. This eliminates the extra layer of authentication when working on the business network and still requires the authentication when off-site. -----Original Message----- From: Andrew English [mailto:andrew@xxxxxxxxxxxxxxxxxxxxxx] Sent: Monday, August 22, 2005 8:08 AM To: [ExchangeList] Subject: [exchangelist] RPC over HTTP internal/external w/ISA Server 2k4 http://www.MSExchange.org/ I have ISA 2004 Server setup to allow OL2k3 users to access their emails by RPC over HTTP when they are away from the office with their notebooks. I am wondering if there is anyway to force OL2k3 to use their users local credentials to login via RPC over HTTP on the local LAN instead of prompting them for a username and password each time. It's already driving the employees mad; we had to call the men in white coats to take them away.. ;) Thanks Andrew ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: jeff@xxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx