Django : SMTPAuthenticationError: (535, b'5.7.8 Username and Password not accepted in Django product

Django : SMTPAuthenticationError: (535, b'5.7.8 Username and Password not accepted in Django production?
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Django : SMTPAuthenticationError: (535, b'5.7.8 Username and Password not accepted in Django production?
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in Django accepted : (535, not Django and production? SMTPAuthenticationError: Username Password b'5.7.8