We currently have a Self-Signed SSL Certificate on an Exchange 2010 Server running Windows Server 2008 R2. We purchased a third party certificate from Mediaura to replace our self-signed certificate. They sent us 3 Certificates and instructed us to install all 3. From IIS7, we were able to use the Complete Certificate Request to install the main mail.xxxxxx.org (SSL https:443
) certificate successfully, but do not fully understand the function of the other two certificates or how they work in conjunction with the main certificate. Neither do we know how to or where to import these 2 certificates.
The certificates are called "AddTrustCARoot.crt" and "PositivesSSLCA2.crt".
Please help us to understand how these certificates work with the server certificate and what we need to do to correctly install these on our server.