Forum Discussion

Brass Contributor

Apr 18, 2019

Access Policy in CAS

Hola Everyone, I hope you are doing well. I am trying to set conditional access and CAS access policy to block access to Outlook Fat Client. I configure this block in CAS and nothing happens. D...

Cloud App Security

Ethan Stern

Iron Contributor

Apr 22, 2019

MariaYacaman hi there! Can you send what your current conditional access policy looks like? In Azure AD to block desktop clients there is a setting for that- have you tried this out?

JavierCaro

Copper Contributor

Apr 22, 2019

Ethan Stern Hi

I attached an image of my two policies (AD and MCAS). MCAS policy Works on Windows 10 native mail client but not in Outlook from Office 2016.

Regards.

MariaYacaman
Brass Contributor
Apr 22, 2019
JavierCaro I have the same configuration as you in CAS and Azure AD and I do not seem to be able to block access from Outlook fat client, unless I configure the block in Azure AD.
- JavierCaro
  Copper Contributor
  Apr 22, 2019
  It is right. That's what I meant with my post. MCAS can block access from any other client (native clients such as Windows 10) except Microsoft Outlook. I would think that it might be related to the new MAPI / HTTPS
  MariaYacaman