@proca/widget/src/lib/checkMail.js

Proca is an open-source campaign toolkit designed to empower activists and organisations in their digital advocacy efforts. It provides a flexible and customisable platform for creating and managing online petitions, email campaigns, and other forms of di

const getDomain = email => {
  const parts = email.split("@");
  if (parts.length !== 2) return false;
  return parts[1];
};

// return name of the main domain of the MX record if found, false if no mx record
const checkMail = async email => {
  if (!email) return false;

  const domain = getDomain(email);
  if (!domain) return false;
  try {
    const response = await fetch(
      `${process.env.REACT_APP_CHECKMAIL_API_URL}/${domain}`
    );
    const r = await response.json();
    return r;
  } catch (e) {
    console.log(e);
    return ""; // don't block submission if the service isn't reachable
  }
};

export default checkMail;
export { getDomain, checkMail };