Django settings for SendGrid

settings.py

EMAIL_BACKEND='django.core.mail.backends.console.EmailBackend'
if os.getenv('SENDGRID_USERNAME') is not None:
    EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
    EMAIL_HOST = 'smtp.sendgrid.net'
    EMAIL_HOST_USER = os.getenv('SENDGRID_USERNAME')
    EMAIL_HOST_PASSWORD = os.getenv('SENDGRID_PASSWORD')
    EMAIL_PORT = 587
    EMAIL_USE_TLS = True