smtp_address: "127.0.0.20:1025"
submission_address: ":3587"
submission_over_tls_address: ":3465"
monitoring_address: ":3099"
mail_delivery_agent_bin: "test-mda"
mail_delivery_agent_args: "external:%to%"
data_dir: "../.data-external"
mail_log_path: "../.logs/external-mail_log"