> ## Documentation Index
> Fetch the complete documentation index at: https://docs.automate.ax/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Automate.ax automations are TypeScript programs.
> Use Bun for installation and command examples.
> Use Automate.ax for the product name and automate.ax for the package, CLI, and domain.
> Treat documented public APIs as current; do not invent transitional or deprecated names.

# Update domain

> Update a Resend domain's capabilities and tracking settings.

`resend.updateDomain` updates one domain.

```ts automations/update-resend-domain.automation.ts theme={null}
import { automation } from "automate.ax"
import { resend } from "automate.ax/resend"

export default automation("Update Resend domain", () => {
  resend.updateDomain({
    domainId: "domain_123",
    patch: { openTracking: true, tls: "enforced" },
  })
})
```

The patch may change click tracking, open tracking, the tracking subdomain, TLS policy, or sending and receiving capabilities. It must contain at least one field, and at least one capability must remain enabled when capabilities are supplied.