📧 Email Management System in C++

Overview

This is a console-based Email Management System implemented in C++ that simulates the core functionalities of an email platform. Users can create accounts, send emails, save drafts, move emails to trash or spam, and persist data across sessions using file I/O.

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Features

• 👤 Account Management

  • Create new user accounts
  • Login with email and password
  • Validates unique usernames and emails
  • Supports email domain verification (lhr.nu.edu.pk)

• 📥 Inbox

  • View received emails
  • Move emails to trash

• 📤 Sent Mail

  • View sent messages

• 📝 Drafts

  • Save unfinished emails
  • Send saved drafts later

• 🚫 Spam

  • Automatically detects and filters spam using predefined keywords
  • Move spam emails to trash

• 🗑️ Trash

  • View and manage deleted or spammed emails

• 💾 Persistence

  • Save and load all user data and emails to/from a file (accounts.txt)
  • Automatically backs up existing data before overwrite

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Spam Detection

Emails are flagged as spam if they contain any of the following keywords:

Winner, Free, Urgent, Claim, Bonus, Limited,
Exclusive, Gift, Guaranteed, Profit

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File Structure

• email2.cpp: Contains the complete codebase including templates for Mail, MailList, Account, and AccountList.
• accounts.txt: Used for saving and loading all email and account data (auto-managed by the system).

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How to Use

1. Compile the Code:

   g++ -o email_system EmailManagementSystem.cpp

2. Run the Program:

   ./email_system

3. Choose from Menu:

   • Create a new account
   • Login to an existing account
   • Use sub-menu to manage emails

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Requirements

• C++11 or later
• Standard C++ Libraries (<iostream>, <fstream>, <string>)

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Code Structure

• Mail<T>: Stores individual email information
• MailList<T>: Manages a linked list of emails (Inbox, Drafts, etc.)
• Account<T>: Holds all user details and related mailboxes
• AccountList<T>: Manages all registered accounts and handles file operations

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Notes

• Email addresses must belong to the domain lhr.nu.edu.pk
• Password must be at least 6 characters long
• The program uses templates and dynamic memory allocation extensively
• Improper program termination may cause data loss unless explicitly saved

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Future Enhancements

✅ Add a graphical user interface (GUI) using libraries like Qt or SFML

✅ Enable password encryption for security

✅ Support for attachments and multimedia content

✅ Implement search and filter functionalities for emails

✅ Add "Mark as Read/Unread" feature

✅ Improve spam detection using NLP or machine learning

✅ Add email reply and forward functionalities

✅ Implement pagination for large inboxes

✅ Add scheduled email sending and notifications

✅ Enable multiple account sessions

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Author

This project was built as part of a course assignment or learning module involving OOP and file handling in C++.

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Collaboration Guidelines

We welcome contributions from the open-source community. If you'd like to collaborate on this project, please adhere to the following guidelines:

1. Fork the repository.
2. Create a new branch for your feature or bug fix.
3. Implement your changes and commit them with descriptive messages.
4. Push your branch to your fork and submit a pull request.

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Feel free to reach out if you have any questions or suggestions!