I get this message but have no way to enter password.
Authorization Error
Error 400: invalid_request
You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy for keeping apps secure.
You can let the app developer know that this app doesn't comply with one or more Google validation rules.
iMac 21.5″, macOS 10.13
It may just need an App Password separate from the gMail password…
https://support.google.com/mail/answer/185833?hl=en-GB
Apple Mail won't sign in to Google account - Apple Community
Note from PrestoWebDesign…
https://discussions.apple.com/thread/253701684?answerId=257151754022#257151754022
Trying to add Gmail account to Apple Mail… - Apple Community
hrshl wrote:
I get this message but have no way to enter password.
Authorization Error
Error 400: invalid_request
You can't sign in to this app because it doesn't comply with Google's OAuth 2.0 policy for keeping apps secure.
You can let the app developer know that this app doesn't comply with one or more Google validation rules.
You'll need to get in touch with google support or look at their help site, since you need to comply with their rules.
Why can't I sign in to Google Mail from my desk?
