Django App

For each distributed Django project that you would like to use the preferred SMTP server, you will need to install the django-email-relay package and do some basic configuration.

1. Install the package from PyPI:

pip install django-email-relay

2. Add email_relay to your INSTALLED_APPS setting:

INSTALLED_APPS = [
    # ...
    "email_relay",
    # ...
]

3. Add the RelayDatabaseEmailBackend to your EMAIL_BACKEND setting:

EMAIL_BACKEND = "email_relay.backend.RelayDatabaseEmailBackend"

4. Add the email relay database to your DATABASES setting. A default database alias is provided at email_relay.conf.EMAIL_RELAY_DATABASE_ALIAS which you can import and use:

from email_relay.conf import EMAIL_RELAY_DATABASE_ALIAS

DATABASES = {
    # ...
    EMAIL_RELAY_DATABASE_ALIAS: {
        "ENGINE": "django.db.backends.postgresql",
        "NAME": "email_relay_db",
        "USER": "email_relay_user",
        "PASSWORD": "email_relay_password",
        "HOST": "localhost",
        "PORT": "5432",
    },
    # ...
}

If you would like to use a different database alias, you will also need to set the DATABASE_ALIAS setting within your DJANGO_EMAIL_RELAY settings:

DATABASES = {
    # ...
    "some_alias": {
        "ENGINE": "django.db.backends.postgresql",
        "NAME": "email_relay_db",
        "USER": "email_relay_user",
        "PASSWORD": "email_relay_password",
        "HOST": "localhost",
        "PORT": "5432",
    },
    # ...
}

DJANGO_EMAIL_RELAY = {
    # ...
    "DATABASE_ALIAS": "some_alias",
    # ...
}

4. Add the EmailDatabaseRouter to your DATABASE_ROUTERS setting:

DATABASE_ROUTERS = [
    # ...
    "email_relay.db.EmailDatabaseRouter",
    # ...
]

See the documentation here for general information about configuring django-email-relay.