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RPC over HTTP, 403.6 Error

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RPC over HTTP, 403.6 Error - 28.Nov.2007 11:14:50 AM   
jazior

 

Posts: 25
Joined: 26.Sep.2004
From: FL
Status: offline
We have an Exchange 2003 SBS box... I enabled RPC over HTTP using various articles. When Outlook 2003 or 2007 connect to Exchange outside the network, we constantly receive a Username/Password prompt and are never able to actually get through to Exchange. If we VPN into the network then RPC over HTTP works fine. We are receiving a 403.6 error according to the IIS logs. The RPC folder on the default website has 2 ALLOW ip addresses, 10.10.1.45 (255.255.255.0) and 127.0.0.1. I tried to remove these IP restrictions with no luck to solving the problem so I put them back. The client machines we are testing on have the CA certificate in their trusted CA folder. Any ideas? Microsoft is stumped.

Thanks,
Chase
Post #: 1
RE: RPC over HTTP, 403.6 Error - 16.Jun.2008 9:47:51 AM   
leungda

 

Posts: 50
Joined: 22.Mar.2008
Status: offline
If you using RPC over HTTP on server 2003, you "MUST" apply a commerical certificate for exchange. If you using build in (self-signed) certificate. it WILL NEVER work.

(in reply to jazior)
Post #: 2

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