📧 Advanced SMTP Tester

A professional, feature-rich SMTP testing utility for developers and system administrators.

Test SMTP configurations, troubleshoot connection issues, and validate email delivery with an elegant, intuitive interface.

---

🌐 Live Demo

Try it now: https://advanced-smtp-tester.beyondcloud.technology/

---

📸 Screenshots

Desktop View (1920x1080)

Mobile View

---

✨ Key Features

🎨 Premium User Experience

• Dark/Light Mode - Seamless theme switching with persistence
• Glassmorphism Design - Modern, polished interface with smooth animations
• Fully Responsive - Perfect experience on desktop, tablet, and mobile devices
• Git Version Badge - Always know what version is deployed (bottom-right corner)

⚡ Powerful Testing Capabilities

• Quick Presets - Pre-configured settings for popular providers:
  • Microsoft Office 365
  • Google Gmail
  • SendGrid
  • Mailgun
  • Amazon SES
• Auto-Discovery - Automatically test multiple port/encryption combinations:
  • Ports: 25, 465, 587, 2525
  • Encryption: SSL/TLS, STARTTLS, Unencrypted
• Enhanced Error Handling - Intelligent error analysis with actionable troubleshooting tips

📊 History & Insights

• Local Test History - Automatically saves recent tests in browser storage
• Detailed Logs - View complete SMTP transaction logs and server responses
• Click-to-Reload - Quickly retest previous configurations

🔒 Security & Privacy

• No Server Storage - Credentials are processed in-memory only
• Browser-Only History - Test history stored locally (IndexedDB)
• Clear Warning - Password inclusion in test emails is clearly indicated

---

🚀 Installation Options

Option 1: Use the Live Demo ✨ Recommended

No installation needed! Just visit:
https://advanced-smtp-tester.beyondcloud.technology/

Option 2: Run Locally (Node.js)

# Clone the repository
git clone https://github.com/DeNNiiInc/Advanced-Smtp-Tester.git
cd Advanced-Smtp-Tester

# Install dependencies
npm install

# Start the server
npm start

# Access at http://localhost:3000

Option 3: Desktop App (Electron)

# Development mode
npm run electron

# Build Windows installer
npm run build

Option 4: Automated Proxmox Deployment

For automated deployment to TurnKey Linux Node.js containers:

1. Create deploy-secrets.json (see PROXMOX_DEPLOY_TEMPLATE.md)
2. Run: ./deploy-to-proxmox.ps1

Features automatic:

• Dependency installation (Git, Nginx, PM2, Cloudflared)
• Nginx reverse proxy configuration
• Auto-updates every 5 minutes via cron

📖 Full Deployment Guide

---

💡 Usage

Quick Start

1. Visit https://advanced-smtp-tester.beyondcloud.technology/
2. Select a preset (e.g., "Microsoft Office 365")
3. Enter your credentials
4. Enter recipient email address
5. Click "Test Configuration & Send Email"

Auto-Discovery Mode

Click "Auto Discovery Test" to automatically test all common port and encryption combinations. Successful configurations will send separate test emails.

Configuration Presets

Provider	Host	Port	Encryption
Office 365	smtp.office365.com	587	STARTTLS
Gmail	smtp.gmail.com	587	STARTTLS
SendGrid	smtp.sendgrid.net	587	STARTTLS
Mailgun	smtp.mailgun.org	587	STARTTLS
Amazon SES	email-smtp.us-east-1.amazonaws.com	587	STARTTLS
Mail Assure	smtpout.mtaroutes.com	587	STARTTLS

---

🛠️ Technology Stack

• Backend: Node.js, Express, Nodemailer
• Frontend: Vanilla JavaScript, IndexedDB
• Desktop: Electron
• Deployment: PM2, Nginx, Git Auto-Sync
• Design: Glassmorphism, CSS Variables, Responsive Grid

---

🤝 Contributing

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

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

---

📄 License

This project is licensed under the ISC License.

---

Built with ❤️ by Beyond Cloud Technology

YouTube • Website • GitHub