We own domaina.com. Problem is that when this domain was set up way back in the NT4 days, someone used domainb.com as the domain name internally....and we never owned it.
So now that I have moved from Exchange 2003 to 2010, Outlook clients get the "The name on the security certificate is invalid or does not match the name of the site." We do have a proper certificate for OWA and is working fine when coming from the outside.
I changed the URLs under EMC\Server Configuration\Client Access on all the URLs listed there.
Where can I change the name that the Outlook clients are looking? If I can get it to mail.domaina.com I would be happy!
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