Are you having an issue with your Gmail account in Microsoft Outlook that it is not working or prompting you for the password?
Majority of the time this fault is caused by a setting in Gmail called ‘Allow less secure apps’ been switched off which will block Microsoft Outlook from accessing Gmail.
Please follow these steps to check this setting.
Sign in to your Google account settings. If two-factor authentication is not enabled, the option to allow less secure apps is at the end of the page and you can toggle the switch to turn the setting on.
If you enable two-factor authentication, you’ll create new app passwords at App passwords. Gmail allows you to revoke individual app passwords, which you can do by clicking the trash can icon to the right of the device name.
If you choose to allow less secure apps, is it really insecure? No, it’s just not as secure as using the newer OAuth protocol to login. Less secure apps use plain username/password authentication to access an account instead of OAuth 2.0.