Quickstart · Express

Send transactional email through Envimaily's HTTP API (https://api.envimaily.com) with Express.

1. Account & key

1. Sign up at https://app.envimaily.com/dev/signup
2. Create an em_ key under API keys
3. Copy the token once — it is not shown again

2. Example

const res = await fetch('https://api.envimaily.com/v1/emails', {
  method: 'POST',
  headers: {
    Authorization: 'Bearer em_YOUR_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    from: 'onboarding@envimaily.com',
    to: ['you@example.com'],
    subject: 'Hello from São Paulo',
    html: '<p>It works.</p>',
  }),
});
console.log(await res.json());

3. Without a verified domain

Use the shared test sender onboarding@envimaily.com and send only to the account owner email. After SPF/DKIM verification, send from your domain.

4. Limits

Next: Domains & DNS · Emails API · Migrate from Resend