Thanks for the info.I could tick the "Accept Cookies from Sites" in options/Privacy & Security of Thunderbird, not account settings.I also had to set an exclusion for "live.com" which is Outlook.Then I reset the login account settings to OAuth2 for ...
I have tried logging in from mobile and it is not a problem, as long as the mobile is verified. I only use the browser, not a mail client.I tried using OAth0 on a windows 10 machine and is does not work. It throws up errors saying your browser does n...