send-email

To send batch transactional emails without duplicates, use idempotency keys within your batch request. This ensures reliable delivery by preventing the Resend API from processing the same email multiple times during network retries.

Automating transactional emails with Resend is best handled by orchestrating API calls through a dedicated service. This approach manages single and batch workflows, applies idempotency, and handles errors for scalable messaging.

Yes, a verified sending domain is required to use the Resend API for transactional emails. You also need the Resend SDK installed to authenticate requests and ensure your automated messages are delivered successfully.

Webhook support tracks transactional email delivery by receiving real-time event notifications from the Resend API. This allows you to monitor email status updates, handle delivery errors, and verify message completion across your workflows.

Yes, you can handle error retries when sending automated emails through the Resend API. Built-in error handling mechanisms catch failed requests and safely retry batch and single sends using idempotency keys to prevent duplicates.

Idempotency keys are needed for automated password resets and order confirmations whenever network timeouts or errors occur. They prevent duplicate transactional emails from being sent if the Resend API receives multiple retry requests for the same action.