On Resend email event

resend.onEmailEvent handles send, delivery, engagement, failure, suppression, scheduling, and inbound events. Use a specific trigger for one category.

automations/watch-all-resend-events.automation.ts

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

export default automation("Watch all Resend events", () => {
  const email = resend.onEmailEvent()
  email.transform(({ emailId, event, to }) => ({
    emailId,
    recipients: to,
    type: event.type,
  }))
})

Optional static account: string | IntegrationAccountReference<"resend"> defaults to the project binding. The account can’t change at runtime.

Trigger data

Returns Signal<ResendEmailEvent>. event.type identifies the event:

type ResendEmailEvent =
  | ResendOutboundEvent<"email.sent">
  | ResendOutboundEvent<"email.delivered">
  | (ResendOutboundEvent<"email.bounced"> & { bounce: ResendBounce })
  | ResendOutboundEvent<"email.opened">
  | (ResendOutboundEvent<"email.clicked"> & { click: ResendClick })
  | ResendOutboundEvent<"email.complained">
  | ResendOutboundEvent<"email.delivery_delayed">
  | ResendOutboundEvent<"email.scheduled">
  | (ResendOutboundEvent<"email.failed"> & {
      failed: { reason: string }
    })
  | (ResendOutboundEvent<"email.suppressed"> & {
      suppressed: {
        diagnosticCode?: (string | null)[]
        message: string
        reason?: string
        type: string
      }
    })
  | (ResendReceivedEmail & {
      event: ResendWebhook<"email.received">
    })

type ResendOutboundEvent<TType extends string> = ResendOutboundEmail & {
  event: ResendWebhook<TType>
}

interface ResendOutboundEmail {
  broadcastId?: string
  createdAt: string
  emailId: string
  from: string
  messageId: string
  subject: string
  tags?: Record<string, string>
  templateId?: string
  to: string[]
}

interface ResendReceivedEmail {
  attachments: {
    contentDisposition: string | null
    contentId: string | null
    contentType: string
    filename: string | null
    id: string
  }[]
  bcc: string[]
  cc: string[]
  createdAt: string
  emailId: string
  from: string
  messageId: string
  receivedFor?: string[]
  subject: string
  to: string[]
}

interface ResendBounce {
  diagnosticCode?: string[]
  message: string
  subType: string
  type: string
}

interface ResendClick {
  ipAddress: string
  link: string
  timestamp: string
  userAgent: string
}

interface ResendWebhook<TType extends string> {
  created_at: string
  data: Record<string, JSONValue>
  type: TType
}

Every event includes camel-cased fields such as emailId, messageId, createdAt, from, to, and subject. Outbound events can also include broadcastId, templateId, and tags. Bounce, click, failure, suppression, and inbound events add their fields. event preserves Resend’s webhook envelope, including provider-native created_at and data.

Built-in triggers

Built-in actions

Runtime utilities

Integrations

On Resend email event

Trigger data

​Trigger data

Trigger data