Express

export SECURESSMTP_API_KEY="qcs_live_..."

// server.js
import express from 'express';
import { sendEmail } from './securessmtp.js';

const app = express();
app.use(express.json({ limit: '100kb' }));
app.use(express.urlencoded({ extended: false, limit: '100kb' }));

const EMAIL_RE = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;

function validate(body) {
  const name = String(body?.name ?? '').trim();
  const email = String(body?.email ?? '').trim();
  const message = String(body?.message ?? '').trim();
  const errors = {};

  if (!name || name.length > 100) errors.name = 'Enter your name.';
  if (!EMAIL_RE.test(email) || email.length > 254) errors.email = 'Enter a valid email address.';
  if (!message || message.length > 5000) errors.message = 'Enter a message of up to 5,000 characters.';

  return { name, email, message, errors };
}

app.post('/contact', async (req, res) => {
  const { name, email, message, errors } = validate(req.body);
  if (Object.keys(errors).length > 0) {
    return res.status(422).json({ ok: false, errors });
  }

  try {
    await sendEmail({
      to: process.env.CONTACT_TO, // where contact messages should go
      subject: `Contact form: ${name}`,
      text: `Name: ${name}\nEmail: ${email}\n\n${message}`,
      from: { name: 'Website contact form' },
      reply_to: email,
      source_plugin: 'express-contact',
    });
    return res.json({ ok: true });
  } catch (err) {
    console.error('Contact email failed:', err.message);
    return res.status(502).json({ ok: false, error: 'Could not send your message. Please try again later.' });
  }
});

app.listen(3000, () => console.log('Listening on http://localhost:3000'));