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RPC over HTTP

I am attempting to connect outside users to the exchange server using RCP over HTTP.  I can get it to work inside the office but not from the outside.  I checked the connection status in outlook at it was tcp/ip and I know that is not right.  Everything seems to be right according to the instructions I have found on microsoft.  I read on here that if an ssl cert popped up it would stop outlook in its tracks.  I turned off ssl for RPC and can now connect through http://server.domain.com/rpc with out the cert popping up.  Any help would be appreciated.
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FedEquipAdmin
Asked:
FedEquipAdmin
2 Solutions
 
eatmeimadanishCommented:
http://www.msexchange.org/tutorials/Outlook_2003_Connect_Exchange_2003.html

and more links in case you need additional help;
http://www.msexchange.org/pages/search.asp?query=rpc+over+http

Check half way down, they have some articles about trouble shooting.

Most of the time the issue comes from not porting 443 correctly, or the internal servername was used and not the MX name of the mailserver.  Remember, when you are outside the domain, the servers are the MX DNS record, not the local one.
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Jejin JosephCommented:
You should be able to access OWA from outside on the same URL for RPC/HTTP withought any prompts on SSL. Can you connect using RPC/HTTP from inside the network ? If yes then its go to do with your firewall configuration and port and IP mappings.
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FedEquipAdminAuthor Commented:
It connects inside the network but only through tcp/ip.
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eatmeimadanishCommented:
Then you have it setup wrong.  It must be using DNS to connect.
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SembeeCommented:
If it is connecting inside on TCP/IP then it isn't working correctly. You cannot easily use the feature without SSL. It doesn't matter whether you remove or disable the requirement for SSL on the /rpc virtual directory it will still not work correctly.

Most of the problems with this feature are down to name resolution, certificate or registry settings.

Simon.
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