User is facing the below error while login the mail through outlook ( RPC over http).
"There is a problem with the proxy security certificate.
Outlook is unable to connect to the Proxy server
webmail.abc.com ( error code 20)"
There is no problem with webmail access.
while I checking the certificate, it is showing IIS certificate invaild ( it is expired).
So I Renew the certificate by the new-exchange certifcate command , but still same problem.
We are not using any external trusted certificate, is there any possibility to expired any SAN CA certifcate, so , please suggest how do in created SAN root ( CA ) certificate & export in two CAS serevr which are in LNB.
We are using Windows Server 2008 NLB for cas Server.
It is urgent , please suggest.