we are facing a certificate error problem on the in-band mode NAC. While user tries to communicate with ms outlook via in-band nac after the NAC process, user get the certificate error message from the proxy server, but when user clicks the view certificate option in-band cas certificate will be appear. but sometimes users can use MS outlook without error message.
FQDN of cas server is not bypassing from the proxy server.
please find the attached file for detail.