TL;DR: In NodeJS, use scheduling to send a daily email through a third-party service as a bounded recovery workflow, not as a single timer that happens to call an email endpoint. Persist the report window, assign every shipment update an idempotency key, record delivery state, and alert on recov...
Source: [Dev.to](https://dev.to/hwpgsd503817/nodejs-daily-email-scheduling-a-4-step-third-party-service-recovery-plan-nkh)