MailboxValidator API

// Verify if an email is valid and deliverable
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const email = '[email protected]';
const response = await fetch(`https://www.mailboxvalidator.com/api-email-free`, { headers });
const data = await response.json();
console.log('Email valid:', data.valid || data.is_valid);
console.log('Deliverable:', data.deliverable ?? 'Unknown');

// Send an email via MailboxValidator
const response = await fetch('https://www.mailboxvalidator.com/api-email-free', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-Api-Key': 'YOUR_API_KEY'
  },
  body: JSON.stringify({
    to: '[email protected]',
    subject: 'Hello from MailboxValidator',
    body: 'This is a test email.'
  })
});
const result = await response.json();
console.log('Email sent:', result);

// Detect disposable/temporary email addresses
const headers = { 'X-Api-Key': 'YOUR_API_KEY' };
const email = '[email protected]';
const response = await fetch(`https://www.mailboxvalidator.com/api-email-free`, { headers });
const data = await response.json();
const isDisposable = data.disposable || data.is_disposable || false;
console.log(`${email} is ${isDisposable ? 'disposable ⚠️' : 'legitimate ✅'}`);