Las instrucciones dicen que:
How to configure outbound email settings?
SMTP configure for Gmail
To configure outbound email, follow these steps:
Open the console in your application
Go to the folder /opt/bitnami/apps/edx/conf (Substitute /opt/bitnami for your installation directory for native installers)
Add the credentials to the lms.auth.json and cms.auth.json:
“EMAIL_HOST_USER”: “yourmailaccount@gmail.com”,
“EMAIL_HOST_PASSWORD”: “password”,
Finally restart the Apache server load the changes.
Pero mi servidor sendmail requería estos campos
EMAIL_PORT = 25
EMAIL_USE_TLS = False
EMAIL_HOST_USER = ”
EMAIL_HOST_PASSWORD = ”
Fuente;
https://wiki.bitnami.com/Applications/Bitnami_Open_edX#How_to_configure_outbound_email_settings.3f