On Resend email delivery delayed - Automate.ax

resend.onEmailDeliveryDelayed handles email.delivery_delayed for temporary deferrals.

automations/monitor-resend-delay.automation.ts

import { automation } from "automate.ax"
import { resend } from "automate.ax/resend"

export default automation("Monitor Resend delays", () => {
  const delayed = resend.onEmailDeliveryDelayed()
  delayed.transform(({ createdAt, emailId, to }) => ({
    createdAt,
    emailId,
    recipients: to,
  }))
})

Optional static account defaults to the project binding.

Trigger data

Returns the shared Resend outbound event fields with event.type: "email.delivery_delayed":

type ResendEmailDeliveryDelayedEvent =
  ResendOutboundEvent<"email.delivery_delayed">

event preserves the original Resend envelope. Resend can continue retrying after this event, so wait for delivered, bounced, or failed events for a final outcome.