Email Campaign Manager

A comprehensive Laravel application for creating, managing, and tracking email marketing campaigns with advanced analytics

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📋 Table of Contents

• About
• Features
• Tech Stack
• Getting Started
• Project Structure
• Database Schema
• Email Tracking
• Queue System
• Challenges & Solutions
• Testing
• Performance
• Roadmap

🎯 About The Project

A professional email marketing platform built with Laravel 12 that enables businesses to create, send, and track email campaigns efficiently. Features real-time tracking of email opens and link clicks, template management, subscriber lists, and comprehensive campaign analytics.

Why I Built This

Email marketing is crucial for business growth, but existing solutions can be expensive and overly complex. This project demonstrates:

• Backend Architecture - Clean MVC structure with service layer patterns
• Queue Management - Efficient background job processing for bulk email sending
• Database Design - Normalized schema with proper relationships and soft deletes
• Email Tracking - Custom implementation of pixel tracking and link redirects
• Real-time Analytics - Campaign performance metrics and subscriber engagement

✨ Features

Campaign Management

• 📧 Create Email Campaigns - Rich text editor with template support
• 📅 Schedule Campaigns - Send immediately or schedule for later
• 📊 Campaign Analytics - Track opens, clicks, and engagement rates
• 🗂️ Template System - Reusable email templates with variable placeholders
• 🔄 Soft Delete - Restore accidentally deleted campaigns

Subscriber Management

• 👥 Email Lists - Organize subscribers into targeted lists
• ➕ Add Subscribers - Individual or bulk subscriber import
• 📋 List Management - View and manage subscriber details
• 🗑️ Subscriber Removal - Clean list management

Email Tracking

• 👁️ Open Tracking - 1x1 pixel tracking for email opens
• 🔗 Click Tracking - Track link clicks within emails
• 📈 Real-time Metrics - Live campaign performance dashboard
• 📊 Engagement Analytics - Detailed subscriber engagement data

System Features

• 🔐 Authentication - Laravel Breeze with email verification
• ⚡ Queue System - Background job processing for email sending
• 🎨 Responsive UI - Tailwind CSS for mobile-friendly interface
• 🧪 Testing - Pest PHP test suite

🛠️ Tech Stack

Backend:

• PHP 8.2
• Laravel 12.0 Framework
• Laravel Breeze (Authentication)
• Laravel Queue (Background Jobs)
• Pest PHP (Testing)

Frontend:

• Blade Templates
• Tailwind CSS 3.0
• Alpine.js (via Breeze)
• Vite (Asset Bundling)

Database:

• MySQL 8.0 / PostgreSQL
• Eloquent ORM
• Database Migrations

Development Tools:

• Laravel Debugbar
• LaraDumps
• Laravel Pint (Code Style)
• Composer

Infrastructure:

• Queue Workers
• Email Service (SMTP/Mailgun/etc)
• File Storage

🚀 Getting Started

Prerequisites

• PHP >= 8.2
• Composer >= 2.0
• Node.js >= 18
• MySQL >= 8.0 or PostgreSQL >= 12
• Mail Server (SMTP credentials)

Installation

1. Clone the repository

git clone https://github.com/Luan-Neumann-Dev/email-blast.git
cd email-campaign-manager

2. Install PHP dependencies

composer install

3. Install Node dependencies

npm install

4. Environment setup

cp .env.example .env
php artisan key:generate

5. Configure database and mail in .env

DB_CONNECTION=mysql
DB_HOST=127.0.0.1
DB_PORT=3306
DB_DATABASE=email_campaigns
DB_USERNAME=root
DB_PASSWORD=

MAIL_MAILER=smtp
MAIL_HOST=smtp.mailtrap.io
MAIL_PORT=2525
MAIL_USERNAME=your_username
MAIL_PASSWORD=your_password
MAIL_FROM_ADDRESS=noreply@example.com

6. Run migrations

php artisan migrate --seed

7. Build frontend assets

npm run build

8. Start the development server

# Quick start (runs all services concurrently)
composer dev

# Or manually start each service
php artisan serve
php artisan queue:listen
npm run dev

9. Access the application

http://localhost:8000

Quick Setup Script

Or use the automated setup:

composer setup

📁 Project Structure

email-campaign-manager/
├── app/
│   ├── Http/
│   │   ├── Controllers/
│   │   │   ├── CampaignController.php       # Campaign CRUD
│   │   │   ├── EmailListController.php      # Email list management
│   │   │   ├── SubscriberController.php     # Subscriber management
│   │   │   ├── TemplateController.php       # Template management
│   │   │   └── TrackingController.php       # Open/click tracking
│   │   ├── Middleware/
│   │   │   └── CampaignCreateSessionControl.php
│   │   └── Requests/                         # Form validation
│   │
│   ├── Jobs/
│   │   ├── SendEmailsCampaignJob.php        # Queue campaign
│   │   └── SendEmailCampaignJob.php         # Send individual email
│   │
│   ├── Mail/
│   │   └── EmailCampaign.php                # Mailable class
│   │
│   └── Models/
│       ├── Campaign.php                      # Campaign model
│       ├── CampaignMail.php                 # Tracking model
│       ├── EmailList.php                    # Email list model
│       ├── Subscriber.php                   # Subscriber model
│       └── Template.php                     # Template model
│
├── database/
│   ├── migrations/                          # Database schema
│   └── seeders/                             # Test data
│
├── resources/
│   └── views/                               # Blade templates
│
├── routes/
│   ├── web.php                              # Web routes
│   └── auth.php                             # Auth routes
│
└── tests/                                   # Pest PHP tests

🗄️ Database Schema

Core Tables

campaigns

- id (primary key)
- name (string)
- subject (string)
- email_list_id (foreign key)
- template_id (foreign key)
- track_click (boolean)
- track_open (boolean)
- body (text)
- send_at (datetime, nullable)
- created_at, updated_at, deleted_at

campaign_mails

- id (primary key)
- campaign_id (foreign key)
- subscriber_id (foreign key)
- sent_at (datetime, nullable)
- openings (unsigned small int)
- clicks (unsigned small int)
- created_at, updated_at

email_lists

- id (primary key)
- name (string)
- user_id (foreign key)
- created_at, updated_at

subscribers

- id (primary key)
- email (string, unique per list)
- name (string)
- email_list_id (foreign key)
- created_at, updated_at

templates

- id (primary key)
- name (string)
- content (text)
- user_id (foreign key)
- created_at, updated_at

Entity Relationships

User (1) ──→ (N) EmailList
EmailList (1) ──→ (N) Subscriber
EmailList (1) ──→ (N) Campaign
Template (1) ──→ (N) Campaign
Campaign (1) ──→ (N) CampaignMail
Subscriber (1) ──→ (N) CampaignMail

📧 Email Tracking

How It Works

Open Tracking

1. When an email is sent, a unique 1x1 transparent pixel is embedded:

<img src="https://yourapp.com/t/{campaign_mail_id}/o" width="1" height="1" />

2. When the recipient opens the email, the pixel loads
3. The tracking route increments the openings counter
4. Returns a transparent 1x1 PNG image

Click Tracking

1. All links in the email are rewritten to go through the tracking system:

<a href="https://yourapp.com/t/{campaign_mail_id}/c?url={original_url}">

2. When clicked, the route:
   • Increments the clicks counter
   • Redirects user to the original URL

Tracking Routes

// Open tracking
GET /t/{campaignMail}/o

// Click tracking
GET /t/{campaignMail}/c?url={destination}

⚡ Queue System

Background Jobs

SendEmailsCampaignJob

Queues individual emails for all subscribers in a campaign:

public function handle(): void
{
    foreach ($this->campaign->emailList->subscribers as $subscriber) {
        SendEmailCampaignJob::dispatch($this->campaign, $subscriber);
    }
}

SendEmailCampaignJob

Sends individual email to a subscriber:

• Creates tracking record in campaign_mails
• Sends email with tracking pixels/links
• Updates sent_at timestamp

Running Queue Workers

# Development
php artisan queue:listen

# Production (supervisord recommended)
php artisan queue:work --tries=3 --timeout=60

💡 Challenges & Solutions

Challenge 1: Bulk Email Performance

Problem: Sending thousands of emails synchronously would timeout and block the application.

Solution: Implemented Laravel Queue system with two-level job dispatching:

// Level 1: Queue the campaign
SendEmailsCampaignJob::dispatch($campaign);

// Level 2: Each subscriber gets their own job
SendEmailCampaignJob::dispatch($campaign, $subscriber);

Result:

• Non-blocking email sending
• Automatic retry on failure
• Scalable to thousands of subscribers
• Failed jobs tracked in failed_jobs table

Challenge 2: Accurate Email Tracking

Problem: Tracking opens and clicks without external services.

Solution: Custom tracking implementation:

• Opens: 1x1 transparent tracking pixel
• Clicks: URL rewriting through tracking controller
• Unique IDs: Each email gets unique campaign_mail_id

Technologies:

• PHP Image Generation (GD library)
• URL parsing and rewriting
• Database incrementing with increment()

Result:

• 100% open rate accuracy (when images enabled)
• All click tracking without JavaScript
• Privacy-respecting (no external trackers)

Challenge 3: Session Management for Multi-Step Form

Problem: Campaign creation has multiple steps (details, template, list, schedule).

Solution: Created custom middleware CampaignCreateSessionControl:

• Stores form data in session between steps
• Validates required data before each step
• Clears session after campaign creation

Result:

• Smooth multi-step user experience
• Data persistence across steps
• Clean validation

🧪 Testing

Running Tests

# Run all tests
php artisan test

# Or using composer script
composer test

# Run specific test file
php artisan test tests/Feature/CampaignTest.php

# Run with coverage
php artisan test --coverage

Test Structure

tests/
├── Feature/
│   ├── CampaignTest.php
│   ├── EmailListTest.php
│   └── TrackingTest.php
└── Unit/
    ├── JobTest.php
    └── MailTest.php

📊 Performance

Metrics

• Average Email Send Time: ~200ms per email
• Queue Processing: 100+ emails/minute
• Database Queries: Optimized with eager loading
• Page Load Time: < 500ms (with database cache)

Optimizations Implemented

• Eager loading for N+1 query prevention
• Database indexing on foreign keys
• Queue chunking for bulk operations
• Compiled Blade templates

🗺️ Roadmap

Planned Features

• A/B Testing - Test subject lines and content variations
• Advanced Analytics - Heat maps, time-based engagement
• Subscriber Segmentation - Tag-based filtering
• Email Templates Gallery - Pre-built responsive templates
• Webhook Support - Integration with external services
• CSV Import/Export - Bulk subscriber management
• Campaign Duplication - Clone successful campaigns
• Bounce Handling - Track and manage bounced emails
• Unsubscribe Management - One-click unsubscribe links
• API - RESTful API for integrations
• Dark Mode - UI theme toggle
• Multi-language Support - i18n implementation

🔐 Security

• CSRF protection on all forms
• SQL injection prevention via Eloquent ORM
• XSS protection in Blade templates
• Email validation and sanitization
• Rate limiting on tracking endpoints
• Signed routes for email verification

🤝 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

👤 Author

Luan Henrique Neumann

• LinkedIn: LuanNeumannDev
• GitHub: @Luan-Neumann-Dev
• Email: luan.neumann.dev@gmail.com

🙏 Acknowledgments

• Laravel Framework for the robust foundation
• Tailwind CSS for the beautiful UI
• Laravel Breeze for authentication scaffolding
• Pest PHP for elegant testing syntax

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⭐ If this project helped you, please consider giving it a star!

Made with ❤️ and ☕ by Luan Henrique Neumann