Few steps that will help to connect your Outlook account with Warmy via OAuth.
Step 1
Sign in to your Outlook account via the same browser.
Step 2
While adding your mailbox, select Outlook and click connect.
Step 3
Select the mailbox and allow access to it. 
After a couple of minutes of adding the mailbox to Warmy, refresh the page and make sure that the authentication process went correctly. 🙂
