Microsoft Defender for Cloud Apps security is blocking outlook Add-in authentication flow in outlook client

Question

our outlook Add-in is working fine without implementation of MCAS(defender conditional access policy). when this policy is applied login process added few suffix like *.mcas.ms in the addin url. https://learn.microsoft.com/en-us/defender-cloud-apps/troubleshooting-proxy-url. i have added these suffix in the manifest with app url but failing to work. it works first time. user logout and re-login and now user get block when request raise for authentication. also in manifest we have added.

i tried adding these suffix in manifest but doesn't work