"The name of the security certificate is invalid or does not match the name of the site" when check Free/Busy calendar availability or OOF message

Folks
OOF and Free/Busy calendar availability depends on Autodiscovery Service.

First of all to get this availability for Outlook anywhere the /Autodiscover folder should be published form ISA server , and configuring the External URL in CAS servers.

Enable-OutlookAnywhere -Server CAS01 -ExternalHostname "mail.domain.com" -ExternalAuthenticationMethod "Basic" -SSLOffloading:$False

Set-OABVirtualDirectory -identity "CAS01\OAB (Default Web Site)" -externalurl https://mail.domain.com/OAB -RequireSSL:$true

Set-WebServicesVirtualDirectory -identity "CAS01\EWS (Default Web Site)" -externalurl https://mail.domain.com/EWS/Exchange.asmx -BasicAuthentication:$True