HariPrakash
🤦♂️ I mean actually go to the email, click on it, click on Remote Mailbox tab, click Config button, and click IdP Config tab.
As far as the information used, you did use the Client Secret Value and not the Client Secret ID, right? Also, for the Client ID you used the Application (client) ID and not the Client Secret ID, right?
When it brings you to MS to authenticate, you are logging in as the email you are configuring in osTicket, right?
Cheers.