Migration Converter · free

Email API migration converter

Convert common provider examples into draft Postscale requests, webhook handlers, SMTP settings, and suppression-import commands.

Source provider

Conversion mode

InputPaste or edit

Output1 recipient, 1 tag

await fetch("https://api.postscale.io/v1/send", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.POSTSCALE_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    from: "Acme <alerts@example.com>",
    to: ["user@example.com"],
    subject: "Welcome",
    html_body: "<p>Hello from Acme</p>",
    text_body: "Hello from Acme",
    tags: ["onboarding"],
    metadata: {
          "user_id": "usr_123"
    },
  }),
});

What this converter does

The tool converts common fields and generates a starting point. Review and test the output before using it in your app. Check unsupported fields and provider-specific behavior before moving live traffic.

For provider-specific cutover steps, see the migration center. For production authentication and warming, use the setup checklist.

Need this in production?

The free tool is great for one-off checks. For automated monitoring, alerting, and an API, see the related Postscale product.

See the Transactional Email API