Then you may be missing the other ports required for MAPI conversation to take place. Have you checked your firewall for the deny's? Al _____ From: Joseph Logrippo [mailto:jlogrippo@xxxxxxxxxxxxxxx] Sent: Wednesday, November 19, 2003 11:48 AM To: [ExchangeList] Subject: [exchangelist] RE: Shared Hosting with Exchange 2000 problem http://www.MSExchange.org/ We are only going to let our ip blocks through and not others isp's blocks. This is what is troubling me why i will not work on different subnets but on the same isp network. -----Original Message----- From: Mulnick, Al [mailto:Al.Mulnick@xxxxxxxxxx] Sent: Wednesday, November 19, 2003 8:39 AM To: [ExchangeList] Subject: [exchangelist] RE: Shared Hosting with Exchange 2000 problem http://www.MSExchange.org/ You would have a lot less uncontrolled issues if you investigate RPC/HTTP functionality. Many ISP's are still blocking 135 TCP on the routers due to the virus outbreaks. Additionally, may want to investigate ISA server vs. a stateful inspection only solution especially if you still decide to go with MAPI access. Al _____ From: Joseph Logrippo [mailto:jlogrippo@xxxxxxxxxxxxxxx] Sent: Wednesday, November 19, 2003 11:26 AM To: [ExchangeList] Subject: [exchangelist] Shared Hosting with Exchange 2000 problem http://www.MSExchange.org/ Hello all, I am new to this forum and figured this would be a great place to start with the problem I am having trying to implement a shared hosting environment for using Exchange 2000. I am really new to Exchange 2000. Anyway, here is my scenerio: I have three servers with the following installed: Server A - Active Directory server (w2k advanced server) Server B - Back-end Exchange Server (w2k a.s w/exchange 2000) Server C - Front-end Exchange/OWA server (w2k a.s w/exchange 2000) All the above servers are completley patched for Windows 2000 and have all the recent Exchange patches as well. HTTP, POP, SMTP, and IMAP work great inside and outside of the firewall. Mapi works fine inside of the firewall. The main issue is trying to get mapi to work through a stateful firewall so that I can have some clients connect to exchange directly with outlook. It works great behind the firewall. We also took the firewall out of the mix and still could not connect from a client setting up outlook to access the exchange server. I have dns entries in my host file pointing to the exchange netbios name as well. I also just tried from my home pc enabled port 135 and no go as well. Am I missing something with this configuration? A very important registry hack possible to allow any ip subnet to access the server via RPC (with of course the firewall only allowing certain ip blocks to hit the server with RPC ). I am having a tough time getting any documentation on this or let's say detailed documentation. I ran across multiple registry entries needed on the MS knowlegebase but was not sure I need all those to get this accomplished. Thanks in advance Joe ------------------------------------------------------ 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: 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 ------------------------------------------------------ ------------------------------------------------------ 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: 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 ------------------------------------------------------ ------------------------------------------------------ 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: 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 ------------------------------------------------------