SMTP service
fast and reliable

Add email functionality using SMTP without any external libraries. Works with any platform.

No credit card required

Works with any platform

Add SMTP seamlessly to your existing stack. No code changes needed.

WordPress
Supabase
Laravel
Auth0
NextAuth
Nodemailer
Rails
Django

Copy, paste, send

Simple SMTP integration with your favorite language or framework.

import nodemailer from 'nodemailer';
 
const transporter = nodemailer.createTransport({
  host: 'smtp.unosend.co',
  port: 587,
  secure: false,
  auth: {
    user: 'unosend',
    pass: 'un_xxxxxxxxx', // Your API key
  },
});
 
await transporter.sendMail({
  from: 'hello@yourdomain.com',
  to: 'user@example.com',
  subject: 'Hello!',
  html: '<p>It works!</p>',
});

Encrypt your SMTP connection

Protect communication between your client and our servers.

SMTPS (SSL)

Immediate SSL/TLS connection on port 465.

Port: 465

STARTTLS

Upgrade to encrypted connection on port 587.

Port: 587

SMTP service you can count on

Built for reliability, security, and scale.

99.9% Uptime

Highly available and reliable.

Secure

TLS/SSL encryption.

Support

Fast response times.

One API, Infinite emails

Get 5,000 emails/month free. No credit card required.