outlook ask proxy server security certificate

i use my laptop outlook 2010 at home with VPN connection from my company . I configured outlook so :


error
but when i open outllook i get an error says: proxy server security certificate ,proxy cant connect(error code 8)
apollo-13Asked:
Who is Participating?
 
Simon Butler (Sembee)ConsultantCommented:
Certificates are on the Exchange server, nothing to do with the DC.
Has RPC over HTTPS been used before?
Are you using a trusted SSL certificate or a self signed one?

RPC over HTTPS on Exchange 2003 is very fragile, if it hasn't been used before then it will need configuring correctly with registry changes and the like.
You also need to use a trusted certificate - self signed certificates do not work well at all.

Simon.
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Simon Butler (Sembee)ConsultantCommented:
Is the certificate a wildcard certificate?
If you browse to the address listed, do you get a certificate prompt?
Is this Exchange 2003? If not, why aren't you using Autodiscover?

Simon.
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Md. MojahidCommented:
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Shweta GoelCommented:
Hi,

Connection to the server always required Certified Authority. May ne certificate is invalid or not match to the name of site.

Regards
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Zacharia KurianAdministrator- Data Center & NetworkCommented:
Try access your server from ;

https://mail.yourdomainname.com/rpc 

Try to login with your user name and password and post the details.

Zac.
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apollo-13Author Commented:
this is exchange 2003 server.

https://mail.yourdomainname.com/rpc   --not accept my name and password :(
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apollo-13Author Commented:
i just want to ask.where can i find this certificate ,in exchange or in domain controller?
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