i'm using the SBS2011 Exchange with activesync and clientcertificate based authentication. When i installed the server i first made a selfsigned certificate, but later i also made a thawte-signed cert. Now i don't know anymore which certificate is used for the ssl-encryption and presented to an outlook or whatever email client that comes in over active-sync. When i add a new client to the network i need the selfsigned-cert because thats the CA for the clientcertificates, but i dont know if this is the certificate used in the actual communication between server and client.
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