Unable to verify account name or password.
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Question marked as
“Unable to verify account name or password.”
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Tha on you for the screenshot.
Whats the App?
If Mail…
Use an App-Password --It is intended for third-party apps. So, create an app password using the following link, and then use that for the password on your Mail app. Report back if it works: Sign in with App Passwords - Google Account Help - Google