version: "3.8" services: app: environment: - EMAIL_BACKEND=django.core.mail.backends.${EMAIL_BACKEND}.EmailBackend - EMAIL_DEFAULT_FROM - EMAIL_USE_TLS - EMAIL_USE_SSL - EMAIL_HOST - EMAIL_PORT - EMAIL_HOST_USER - EMAIL_HOST_PASSWORD app-async: environment: - EMAIL_BACKEND=django.core.mail.backends.${EMAIL_BACKEND}.EmailBackend - EMAIL_DEFAULT_FROM - EMAIL_USE_TLS - EMAIL_USE_SSL - EMAIL_HOST - EMAIL_PORT - EMAIL_HOST_USER - EMAIL_HOST_PASSWORD