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:
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.