Why Startups Choose Mailcub

• Send HTML and plain-text emails
• Deliver OTPs, password resets, invoices, and notifications
• Use your own verified domain
• No SMTP configuration required
• Lightweight and easy to integrate

Stop Managing SMTP Infrastructure

Traditional email systems require reverse DNS setup, port configuration, SPF/DKIM authentication, and constant monitoring.

Mailcub replaces all of that with a simple HTTP-based email API. Install the package, use your API key, and start sending emails.

Install in Seconds

npm install mailcub

Send Your First Email

const mailcub = require('mailcub');

const emailBody = {
  email_from: 'hello@yourdomain.com',
  receiver: 'user@example.com',
  subject: 'Welcome',
  html: '<h1>Hello!</h1><p>Thanks for signing up.</p>'
};

mailcub.sendMail(emailBody, 'your-secret-key')
  .then(() => console.log('Email sent'))
  .catch(err => console.error('Error:', err));

No SMTP credentials. No mail server setup. Just one simple API call.

Built for Modern SaaS Applications

Mailcub integrates seamlessly into Node.js backends, REST APIs, and microservices architectures.

• Fast integration
• Clean API design
• Production-ready
• Startup-friendly infrastructure

Own Your Domain. Control Your Brand.

• Branded email sending
• Improved deliverability
• Verified sender identity
• Professional communication

Start Sending Emails Today

Install Mailcub and send transactional emails from your Node.js application in minutes.

👉 Install from npm

Build faster. Launch smarter. Scale confidently.