const suppressions = await lettr.suppressions.list({
  type: 'hard_bounce',
  limit: 100
});

suppressions.forEach(s => {
  console.log({
    email: s.email,
    type: s.type,
    reason: s.reason,
    suppressedAt: s.createdAt
  });
});

const check = await lettr.suppressions.check('user@example.com');

if (check.suppressed) {
  console.log(`Suppressed: ${check.type} - ${check.reason}`);
} else {
  console.log('Email is not suppressed');
}

const result = await lettr.emails.send({
  from: 'you@example.com',
  to: ['suppressed@example.com'],
  subject: 'Hello',
  html: '<p>Hello!</p>'
});

// Returns:
{
  "id": "email_123",
  "status": "suppressed",
  "suppressionReason": "hard_bounce"
}