SMTP relay

Send email from apps
that already use SMTP.

No new SDK required. Point your mailer at Reloop—same host, port, and username/password pattern you already know.

Works with your stack

No extra setup — plug Reloop into the mailer or platform you already use.

Connect

Copy settings, paste into your app.

Same host and port everywhere. Grab an API key from the dashboard for the password.

PasswordGet your API key

Example

Send your first email

Use the settings above with your API key as the password. Pick a language — the snippet updates, this guide stays the same.

  • Port 587 with STARTTLS (or 2465 / 2587)
  • Same host, user, and key for every mailer
View SMTP docs
smtp.js
import nodemailer from 'nodemailer';

const transporter = nodemailer.createTransport({
  host: 'smtp.reloop.sh',
  port: 587,
  secure: false, // use STARTTLS
  auth: {
    user: 'reloop',
    pass: process.env.RELOOP_API_KEY,
  },
});

await transporter.sendMail({
  from: 'noreply@yourdomain.com',
  to: 'user@example.com',
  subject: 'Hello from Reloop',
  html: '<p>Sent via SMTP relay.</p>',
});

Ready to send?
Get SMTP credentials.

Sign up, create credentials in the dashboard, and point your mailer at Reloop.