The certificate specified by the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory doesn't have a private key or the key can't be accessed by Outlook Web App.
The certificate specified by the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate specified by the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate specified by the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate specified by the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate specified by the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate specified by the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate specified in the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate specified in the InstantMessagingCertificateThumbprint parameter of the Outlook Web App virtual directory ...
The certificate with the subject '{0}' can't be used for SSL or TLS connections because the subject isn't a valid fully qualified ...