📧 Advanced SMTP Tester

A premium, powerful SMTP testing utility for developers and sysadmins.
Test configurations, debug connection issues, and visualize results with a modern, beautiful interface.

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✨ Features

🎨 Modern User Interface

• Premium Design - Glassmorphism effects, smooth animations, and a polished UI.
• Dark/Light Mode - Toggle between themes with automatic persistence.
• Responsive - Works perfectly on desktop and mobile devices.

🚀 Powerful Testing Tools

• Auto-Discovery - Automatically test multiple port (25, 465, 587, 2525) and encryption (SSL/TLS, STARTTLS) combinations in one click.
• Quick Presets - Pre-configured settings for Office 365, Gmail, SendGrid, Mailgun, and Amazon SES.
• Enhanced Error Handling - Intelligent error analysis that provides actionable troubleshooting tips.

📊 History & Insights

• Local Test History - Automatically saves your recent tests (locally) for quick re-testing.
• Detailed Logs - View full SMTP transaction logs and server responses.
• Git Version Badge - Always know which version is deployed with the live Git commit badge.

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🌐 Live Demo

Try the application instantly on our production server: https://advanced-smtp-tester.beyondcloud.technology/

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🛠️ Installation & Usage

Option 1: Run Locally (Node.js)

1. Clone the repository

   git clone https://github.com/DeNNiiInc/Advanced-Smtp-Tester.git
   cd Advanced-Smtp-Tester
   

2. Install dependencies

   npm install
   

3. Start the server

   npm start
   

   Access the app at http://localhost:3000

Option 2: Desktop App (Electron)

You can run the application as a standalone desktop app.

# Run in development mode
npm run electron

# Build Windows Installer
npm run build

Option 3: Proxmox Deployment (Automated)

We provide a fully automated deployment script for TurnKey Linux Node.js containers on Proxmox.

1. Setup Secrets: Create deploy-secrets.json (see PROXMOX_DEPLOY_TEMPLATE.md).
2. Run Deploy Script:

   ./deploy-to-proxmox.ps1
   

   This script handles:
   • Installing system dependencies (Git, Nginx, PM2, Cloudflared).
   • Configuring Nginx reverse proxy.
   • Setting up a cron job for auto-updates every 5 minutes.

👉 Read the Full Deployment Guide

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🔒 Security Note

This application is designed for testing purposes.

• Passwords are processed in memory only on the server side to attempt the SMTP connection.
• No credentials are stored on the server.
• Test History is stored locally in your browser (IndexedDB). clearing your browser cache will clear your history.
• The "Unencrypted" option is provided for legacy server testing but should be used with caution.

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🤝 Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

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

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📄 License

This project is licensed under the ISC License.

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Built with ❤️ by Beyond Cloud Technology

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