[POST] Your Form Data. We Handle the Rest.

import { Mailto } from '@mailto.foo/sdk'

function ContactForm() {
  const [email, setEmail] = useState('')

  const handleSubmit = (e) => {
    Mailto.subscribe(email)
      .then(() => console.log('✅ sent!'))
  }

  return (
    <form onSubmit={handleSubmit}>
      <input type="email" value={email}
        onChange={e => setEmail(e.target.value)} />
      <button type="submit">Subscribe</button>
    </form>
  )
}