# F-171

Audited events: account welcome, password reset, payment success/order status, shipment/status changes, payment failure, generic dispatch. Added settings-backed real SMTP provider for notifications and missing PaymentFailed delivery. Existing specialized mailers remain settings-backed. Tests 18/18/typecheck pass. Actual SMTP accepted four representative messages to info@rikrdo.es: welcome, reset, shipped status and failed payment.
