I got this error when I click test connection.
All I need to do is turn on the less secure apps in email that I've used but less secure apps will no longer available in google account settings (https://support.google.com/accounts/answer/6010255?hl=en&visit_id=637914870888609468-3024591901&p=less-secure-apps&rd=1#zippy=%2Cif-less-secure-app-access-is-off-for-your-account%2Cif-less-secure-app-access-is-on-for-your-account).
Is there another way or new way on how to configure outbound email in odoo?