A production-ready email validation service built with Node.js and Bun that helps you verify email addresses in real-time.

POST https://api.emailhawk.dev/verify

curl -X POST https://api.emailhawk.dev/verify \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"email": "[email protected]"}'

{
  "status": "valid",
  "regexp": true,
  "gibberish": false,
  "disposable": false,
  "webmail": false,
  "mx_records": true,
  "smtp_server": true,
  "smtp_check": true,
  "accept_all": false,
  "block": false,
  "domain": "rupt.dev"
}

EmailHawk performs comprehensive email validation through multiple checks:

• ✅ SMTP Verification - Validates email addresses by connecting to the mail server
• 📮 MX Record Checks - Verifies that the domain has valid mail exchange records
• 🎲 Gibberish Detection - Identifies random or nonsensical email addresses
• 🚫 Disposable Email Detection - Checks against multiple lists of temporary email providers
• 📧 Webmail Detection - Identifies popular webmail providers (Gmail, Yahoo, Outlook, etc.)
• 🎯 Catch-All Detection - Coming soon! Identifies domains that accept all email addresses

EmailHawk is a comprehensive, self-hosted email validation solution built from the ground up to be developer-friendly, fast, and easy to deploy.

We created EmailHawk to address two major pain points in the email validation landscape:

1. Fragmented Solutions - Most email validation services are locked behind paywalls and buried within bloated SaaS platforms offering dozens of unrelated features. Finding, understanding, and integrating these services is unnecessarily complex.

2. Need for Simplicity - We needed a single, dedicated product that is:

   • ✅ Easy to host
   • ✅ Quick to build
   • ✅ Fast to get started
   • ✅ Fully functional out of the box
   • ✅ Built with modern Node.js tooling

EmailHawk is our answer: a focused, production-ready email validation service that you can run anywhere.

EmailHawk is a monorepo consisting of three main components:

emailhawk/
├── api/         # Backend API (Express + MongoDB)
├── app/         # Dashboard UI (React)
└── marketing/   # Landing page (React)

• 🔐 Authentication & Authorization - Secure user management with Bearer tokens and API keys
• 📊 Usage Analytics - Track validation requests with detailed metrics and activity logs
• 💳 Billing Integration - Built-in Stripe integration for subscription management
• 🎯 Project Management - Organize API keys and usage by project
• 📈 Dashboard UI - Beautiful, responsive interface for monitoring and management
• 🐳 Docker Ready - Production-ready Docker configurations included
• ✅ Test Coverage - Comprehensive test suites for core functionality

• Bun 1.0 or higher
• MongoDB (local or cloud instance)
• Node.js 18+ (for compatibility)

1. Clone the repository

git clone https://github.com/yourusername/emailhawk.git
cd emailhawk

2. Install dependencies for all components

# Install API dependencies
cd api
bun install

# Install app dependencies
cd ../app
bun install

# Install marketing dependencies
cd ../marketing
bun install

3. Set up environment variables

Create .env files in each directory:

api/.env

PORT=8006
MONGODB_URI=mongodb://localhost:27017/emailhawk
STRIPE_SECRET_KEY=your_stripe_secret_key
STRIPE_WEBHOOK_SECRET=your_stripe_webhook_secret

app/.env

API_URL=http://localhost:8006

marketing/.env

API_URL=http://localhost:8006

Run each component in separate terminal windows:

Terminal 1 - API:

cd api
bun run dev
# API runs on http://localhost:8006

Terminal 2 - Dashboard App:

cd app
bun run dev
# App runs on http://localhost:5173

Terminal 3 - Marketing Site:

cd marketing
bun run dev
# Marketing site runs on http://localhost:5174

Build all components for production:

# Build API (if needed - TypeScript compilation)
cd api
bun run index.ts

# Build app
cd ../app
bun run build

# Build marketing
cd ../marketing
bun run build

cd api

# Build the Docker image
docker build -t emailhawk-api .

# Run the container
docker run -p 8006:8006 \
  -e MONGODB_URI=your_mongo_connection_string \
  -e PORT=8006 \
  emailhawk-api

Or use with environment file:

docker run -p 8006:8006 --env-file .env emailhawk-api

A complete docker-compose.yml configuration for running all services together will be added soon.

Each component includes test suites:

# Run API tests
cd api
bun test

# Run app tests (if available)
cd app
bun test

# Run marketing tests (if available)
cd marketing
bun test

EmailHawk supports two authentication methods:

1. Bearer Token - For user authentication
2. API Key - For programmatic access

For complete API documentation and more examples, see API Documentation.

emailhawk/
├── api/                    # Backend API
│   ├── controllers/        # Request handlers
│   ├── db/                 # Database configuration
│   │   └── mongo/          # MongoDB schemas
│   ├── middlewares/        # Express middlewares
│   ├── models/             # Data models
│   ├── routes/             # API routes
│   ├── tests/              # Test suites
│   ├── types/              # TypeScript definitions
│   ├── Dockerfile          # Docker configuration
│   └── index.ts            # Entry point
│
├── app/                    # Dashboard application
│   └── src/
│       ├── components/     # React components
│       ├── pages/          # Page components
│       ├── models/         # Frontend models
│       └── utils/          # Utility functions
│
├── marketing/              # Marketing website
│   └── src/
│       ├── components/     # React components
│       └── utils/          # Utility functions
│
└── README.md               # This file

We welcome contributions! Here's how you can help:

1. Fork the repository
2. Create a feature branch (git checkout -b feature/amazing-feature)
3. Commit your changes (git commit -m 'Add some amazing feature')
4. Push to the branch (git push origin feature/amazing-feature)
5. Open a Pull Request

• Write tests for new features
• Follow existing code style and conventions
• Update documentation as needed
• Ensure all tests pass before submitting PR

Found a bug? Please open an issue with:

• A clear description of the problem
• Steps to reproduce
• Expected vs actual behavior
• Your environment (OS, Bun version, etc.)

This project is licensed under the MIT License - see the LICENSE file for details.

Built with:

• Bun - Fast JavaScript runtime
• Express - Web framework
• MongoDB - Database
• React - UI framework
• TypeScript - Type safety
• Stripe - Payment processing

• Issues: GitHub Issues
• Discussions: GitHub Discussions

Maintained with ❤️ by Rupt

⭐ Star us on GitHub if you find this project helpful!