2
Adding password in plain text will remove your 5.5.1 Authentication Required Error.
suppose your password is 123weq add it as
EMAIL_HOST_PASSWORD = '123weq'
setting.py
EMAIL_USE_TLS = True
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_HOST_USER = 'zetapsiuchicago@gmail.com'
EMAIL_HOST_PASSWORD = 'password of zetapsiuchicago@gmail.com in plain text'
Source:stackexchange.com