When I created my federation trust last year, our Exchange 2010 server created its own self-signed certificate. But, at that time we did not have a trusted CA Root. So I noticed that if I open my certificate in the EMC under Server Configuration, it shows that the certificate is not trusted "This CA Root certificate is not trusted. To enable trust, install this certificate in the Trusted Root Certification Authorities store."
Is there a way for me to install my existing certificate used for federation services to our Root CA (which is now in place) or will I need to go through the EMC to create a new federation trust?
Thanks!