During my testing, TBA always displays the error “User is authenticated but not connected” when “Let devices and apps use imap” is turned off in outlook webmail settings.
- Try turning off, then on again and wait a few minutes.
- Try removing the previous oAuth permission you granted to K9/TB.
- Grant permissions again during your next oAuth sign-in
If you get past the first error, You’ll likely hit the second one below which I can’t get past. “SmtpClientAuthentication is disabled for the mailbox”