Send Express / Node mail through SecureSMTP

Set up in under five minutes

Same flow for every integration: account → credentials → paste into Express / Node → test send.

1. 1

   Create a free SecureSMTP account

   Sign up at securessmtp.com/signup. Free tier covers 100 emails/month — no card required.

2. 2

   Create an API key

   Dashboard → Settings → API keys → Create. Store it in your environment (e.g. SECURESMTP_API_KEY in .env). Never commit it.

3. 3

   Install or import the SDK

   npm install @securessmtp/sdk · works in Express, Fastify, Koa, Hono, any Node framework.

4. 4

   Make your first send

   Copy the snippet below into a server-side endpoint or background job. Replace the to/subject/html with your own values.

5. 5

   Test, then ship

   Trigger your endpoint in dev. Check the dashboard activity feed to confirm the send. Ship to prod — same code, no config swap.

// server.js
import express from 'express';
const app = express();
app.use(express.json());

app.post('/api/contact', async (req, res) => {
  const r = await fetch('https://api.securessmtp.com/v1/mail/send', {
    method: 'POST',
    headers: {
      Authorization: `Bearer ${process.env.SECURESMTP_API_KEY}`,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      from: 'site@yourdomain.com', to: 'you@yourdomain.com',
      subject: 'Contact', html: req.body.message,
    }),
  });
  res.json({ ok: r.ok });
});

FAQ