Email Template Management System
Fullstack CRUD platform for managing email templates and sending emails via Microsoft Graph API with variable substitution and multi-recipient support
Feature Overview
Enterprise email template management with Microsoft Graph API integration
Core Features
- CRUD operations for email templates
- Template variable support ({{firstName}}, etc.)
- HTML and Plain Text email formats
- Multi-recipient support (To, CC, BCC)
- Active/Inactive template status management
- Template preview before sending
- Search templates by name or ID
- Microsoft Graph API integration
Advanced Features
- OAuth 2.0 authentication with Azure AD
- Secure client secret management
- Variable validation and substitution
- Email delivery tracking
- Template versioning support
- Bulk email sending capability
- REST API for programmatic access
- Responsive React TypeScript UI
System Architecture
Fullstack architecture with React frontend, Spring Boot backend, and Microsoft Graph API integration
React Frontend
TypeScript-based UI with React Router
- Template creation and editing forms
- Email composition interface
- Template variable management
- Responsive design with modern UI
Spring Boot Backend
RESTful API with business logic
- Template CRUD endpoints
- Email sending service
- Variable substitution engine
- Graph API integration layer
MySQL Database
Persistent storage for templates
- Template metadata storage
- Active/inactive status tracking
- Search and filtering support
- Automatic schema management
Microsoft Graph API
Email delivery infrastructure
- OAuth 2.0 authentication
- Mail.Send application permissions
- Multi-recipient email support
- HTML and plain text formats
Key Features
Comprehensive email template management with powerful features
Template Management
Create, edit, and organize email templates
- Unique template naming and identification
- Subject line and body content editing
- HTML and Plain Text format support
- Template description and categorization
- Active/Inactive status toggle
- Search and filter capabilities
Variable Substitution
Dynamic content with template variables
- Double curly brace syntax {{variable}}
- Support for multiple variables per template
- Real-time variable preview
- Validation of required variables
- Custom variable naming
- Nested object support
Multi-Recipient Support
Send to multiple recipients simultaneously
- Primary recipients (To field)
- Carbon copy recipients (CC field)
- Blind carbon copy (BCC field)
- Email address validation
- Bulk recipient input
- Individual variable substitution
Email Delivery
Reliable sending via Microsoft Graph API
- OAuth 2.0 authentication
- Automatic token refresh
- Mail.Send API permissions
- HTML and text multipart messages
- Error handling and retry logic
- Delivery confirmation
Security & Compliance
Enterprise-grade security with Microsoft identity platform integration
Azure AD Authentication
OAuth 2.0 with Microsoft identity platform
- Application registration in Azure Portal
- Client credentials flow
- Tenant-specific authentication
- Token-based API access
API Permissions
Granular Microsoft Graph API permissions
- Mail.Send application permission
- Admin consent requirement
- Least privilege principle
- Permission scope validation
Secret Management
Secure credential storage and handling
- Environment variable configuration
- Encrypted connection strings
- Client secret rotation support
- No hardcoded credentials
Security Best Practices
Production-ready security considerations
- HTTPS enforcement in production
- CORS configuration
- Input validation and sanitization
- SQL injection prevention
Security Considerations
- • Never commit sensitive credentials to version control
- • Use environment variables for production deployments
- • Implement proper authentication/authorization for the web application
- • Use HTTPS in production environments
- • Rotate client secrets regularly
- • Monitor and audit email sending activities
Key Benefits
Why choose this email template management system
Rapid Development
Fullstack template with modern tech stack
Type-Safe Frontend
TypeScript React with comprehensive types
Enterprise Security
OAuth 2.0 with Microsoft identity platform
Flexible Templates
Variable substitution with unlimited flexibility
Ready to Deploy
Backend with REST API and Graph integration
Modern frontend with type safety
Persistent template storage
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