Greetings Mustafa, The configuration in outlook 2003 will use different connections, depending where you are. Let's say, you on the LAN, which mean you are connected/logged on to the domain etc. Outlooks will rely on RPC. When you are on the internet, let's say from a CyberCafe or home, then you are not logged on the domain, hence outlook uses the alternate way of connecting to exchange 2003, in this case would be RPC-Http /Gill -----Original Message----- From: Mustafa Cicek [mailto:mbcicek@xxxxxxxxx] Sent: Wednesday, September 15, 2004 5:50 AM To: [ExchangeList] Subject: [exchangelist] RE: RPC over HTTPS and Outlook 2003 http://www.MSExchange.org/ Hi Raj, To your previous question: No, I cannot any certificate related information message, if I try to create an RPC over HTTP profile. Outlook tries to connect over RPC port (NOT through RPC over HTTP) to connect to Exchange. To your last message: Is it really true that RPC over HTTP profile can only be created? I'm disagree with you that this is a security advantage. In this case, the person who works in home office or in another company and wants to have a RPC over HTTP profile, must bring his/her computer to my LAN to have an RPC over HTTP profile!!! What a wonderful design of Microsoft!!! That is really unbelievable. I think, Steve has right that RPC over HTTP needs still port 135 to connect Exchange. If yes, this profile should be called RPC over H(alf)TTP. I didn't read in any Microsoft documents about it. It seems that Microsoft doesn't publish this "open secret"?! Or dou you know any official Microsoft document about it? Best Regards Mustafa ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSEXchange.org Discussion List as: ssgill@xxxxxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Report abuse to listadmin@xxxxxxxxxxxxxx