CAS certificate question

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B

BGM2

I've introduced two Exchange 2010 CAS servers into my Exchange 2003 organization. I don't have any mailboxes on Exchange 2010 yet. One very important user who has Outlook 2010 got a security alert saying the

" Information you exchange with this site cannot be viewed or changed by others. However there is a problem with the sites security certificate"

" The security certificate was issued by a company you have not chosen to trust. View the certificate to determine whether you want to trust the certifying authority"

Once he goes in and trusts the CA he doesn't get the pop up anymore but why is his client hitting this new CAS before I get his mailbox moved to 2010?
 
E

Ed Crowley [MVP]

Probably Outlook 2010 is finding the information for the first CAS server in Active Directory through Autodiscover.

Ed Crowley MVP " There are seldom good technological solutions to behavioral problems."
 
T

TWHarrington

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