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Outlook is unable to connect to the proxy server.(Error Code 10) when users opened Outlook 2010

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Hi All

Exchange Server - 2013 CU2 (Windows 2012 Standard)
AD Server - 2003 R2 SP2
exchange-svr01.domain.com - internal name
mail.company.net - external name

When users opened Outlook 2010, they will encountered

"There is a problem with the proxy server's security certificate. The name on the security certificate is invalid or does not match the name of the target site exchange-svr01.domain.com.

Outlook is unable to connect to the proxy server.(Error Code 10)"

I also used the Microsoft Remote Connectivity Analyzer to test RPC/HTTP connectivity.


The RPC/HTTP test completed successfully.

    Validating the certificate name.
     Certificate name validation failed.
     Host name company.net doesn't match any name found on the server certificate CN=AMAZONA-U59HG9G.

Testing SSL mutual authentication with the RPC proxy server.
     The test passed with some warnings encountered.
     
The certificate common name company.net doesn't match the mutual authentication string provided mail.company.net; however, a match was found in the subject alternative name extension.

 please help.


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