Praveen, I'm still stuck on this but I'm going to give it another attempt this coming week. If I hit a solution, I'll copy you on it. Cheers, Roger _____ From: Praveen Ramaswamy [mailto:ramaswamy_praveen@xxxxxxxxx] Sent: 01 July 2005 06:14 To: [ExchangeList] Subject: [SPAM?] [exchangelist] RE: [SPAM?] RE: MAPI access urgent!! http://www.MSExchange.org/ No Roger, I Still have problem with RPC over HTTP. I got only MAPI client working accross firewall. RPC over HTTP is not working as it is supposed to. If i give my back end server as the Exchange server name and Front end server FQDN as my proxy then it connects but the traffic from the client is only TCP insted of HTTPS. I checked using etherreal. I have followed MS document (RPC over HTTP deployment scenario) but no luck. This is the second time i am trying to make it work and i am frustrated now. So i thought i will work on this this weekend. i Wish somebody throws some clue on this and help us out this situation. Regards Praveen R