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All the time I get "Username or password incorrect". I have verify again and again this information and it is correct. No mistakes!

marked as duplicate by Lewis Goddard Apr 4 '18 at 19:43

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This issue you're seeing is likely linked to Google's two-factor authentication. You can either disable two-factor authentication altogether or you can set up an app password.

If that still doesn't work, you might have to enable less secure apps.

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