working_domain: materio.com debug_mode: true test_mode: false tracking_opens: 'yes' tracking_clicks: 'yes' tracking_exception: 'user:password_reset' format_filter: plain_text use_queue: true use_theme: false tagging_mailkey: true _core: default_config_hash: bMOl3jD7ZuzZMuaUYzyqadr56G486ldo28NYIkK_54g api_endpoint: 'https://api.mailgun.net'