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Send emails using SMTP without the need for any external libraries or dependencies. Connect seamlessly with your existing tools and frameworks.

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SMTP Credentials

Use these credentials to connect any SMTP-compatible application to Unosend:
SettingValue
Hostsmtp.unosend.co
Port587 (recommended)
Usernameunosend
PasswordYour API Key (un_xxxx...)
You can find your SMTP credentials in Settings → SMTP or create a new API key in API Keys.

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Connection Security

STARTTLS (Recommended)

Upgrades connection to secure. Works with most email clients and services like Supabase.Port 587

SMTPS (Implicit TLS)

Immediately connects via SSL/TLS. Use when your client requires implicit TLS.Port 465

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Quick Start Examples

import nodemailer from 'nodemailer';

const transporter = nodemailer.createTransport({
  host: 'smtp.unosend.co',
  port: 587,
  secure: false, // true for 465, false for 587
  auth: {
    user: 'unosend',
    pass: 'un_your_api_key', // Your API key
  },
});

async function sendEmail() {
  const info = await transporter.sendMail({
    from: '[email protected]',
    to: '[email protected]',
    subject: 'Hello from Unosend!',
    html: '<h1>It works!</h1>',
  });

  console.log('Message sent:', info.messageId);
}

sendEmail();

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Supported Integrations

Unosend SMTP works with any application that supports SMTP:

Nodemailer

Laravel

Django

Rails

Supabase

WordPress

NextAuth

Auth0

Strapi

Ghost

Discourse

GitLab

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Next Steps

Domain Verification

Verify your domain for better deliverability

Sending Emails

Learn about advanced email options