This Node.js application automates the process of sending polite and colorful auto-replies to incoming emails in your Gmail mailbox. It uses the Gmail API to check for new emails, identifies first-time threads, sends a customized auto-reply, and adds a label to the email.

• Auto-Replies: Sends aesthetically pleasing and polite replies to incoming emails.

• Avoids Duplicate Replies: Ensures that an auto-reply is sent only once for each email thread.

• Labeling: Adds a label to the email for easy organization.

• Built with Node.js: The application is developed using Node.js to harness its asynchronous and event-driven nature.

• Gmail API: Utilizes the Gmail API to interact with your Gmail mailbox. Ensure that you have the necessary API credentials.

• Promises and Async/Await: Embraces modern JavaScript standards to write clean and readable code.

• HTML Email Template: Customizable HTML templates for creating stylish and colorful email replies.

  Installation

1. Clone the repository:

   git clone https://github.com/mnamesujit/mailbox.git

2. Install dependencies:

   cd mailox
   npm install

3. Set up API credentials:

   • Follow the instructions in the Google Gmail API documentation to obtain API credentials.
   • Save the credentials as credentials.json in the project root.

4. Create a .env file:

   • Create a .env file in the project root.

   • Add the following environment variables:

     CLIENT_ID=your-client-id
     CLIENT_SECRET=your-client-secret
     REDIRECT_URI=your-redirect-uri

     Replace the placeholders with your actual credentials.

5. Run the application:

   npm start

   The app will prompt you to authenticate and grant permission to access your Gmail account.

6. The application will start checking for new emails, sending auto-replies, and adding labels at random intervals.

• Auto-Reply Message: Customize the content of the auto-reply in the sendReply function of emailService.js.

• HTML Styling: Modify the HTML styles in the sendReply function to change the appearance of the auto-reply.

• Ensure that your Gmail account allows access by enabling "Less secure app access" in your account settings.

• The app runs at random intervals between 45 to 120 seconds to simulate a real-world scenario.

• Implement error handling and logging to enhance the robustness of the application.

• Explore further customization options for HTML email content.

• Enhance the application to handle more complex scenarios and edge cases.

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

Feel free to customize this README based on your specific application details and requirements.