# Plan for Improving Smartmail Integration

## Current State Analysis

The platformservice currently uses @push.rocks/smartmail version 2.0.1, primarily for email handling in:
- Email service via connector.mta.ts
- Template management 
- API endpoints for sending emails

## Identified Integration Improvements

### 1. Update smartmail to Latest Version

- [x] Update package.json to use the latest smartmail version
- [ ] Handle any breaking API changes during the upgrade

### 2. Email Validation Improvements

- [ ] Implement advanced email validation using EmailAddressValidator 
- [ ] Add MX record checking for outbound emails
- [ ] Integrate domain reputation checking for spam prevention

### 3. Template System Enhancement

- [ ] Refactor TemplateManager to leverage smartmail's templating capabilities fully
- [ ] Add support for typed email templates with proper interfaces
- [ ] Create a comprehensive template catalog with standardized formats

### 4. MIME Handling Improvements

- [ ] Utilize smartmail's MIME conversion capabilities in the MTA connector
- [ ] Streamline attachment handling between smartmail and internal Email class
- [ ] Handle content encoding more efficiently

### 5. Integration with MTA Service

- [ ] Refactor Email class to extend or delegate to smartmail.Smartmail
- [ ] Align the interfaces between internal Email and Smartmail classes
- [ ] Simplify conversion between MTA Email format and Smartmail

### 6. Enhanced Email Processing

- [ ] Add proper DKIM signature verification using smartmail capabilities
- [ ] Implement proper email tagging and categorization
- [ ] Better handling of incoming emails with smart parsing

### 7. Testing & Documentation

- [ ] Create comprehensive tests for the smartmail integration
- [ ] Document the integration patterns for future reference
- [ ] Create example implementations for common use cases

## Implementation Strategy

1. First focus on non-breaking improvements (validation, template enhancement)
2. Then tackle the deeper integration with MTA service
3. Finally implement advanced features (MIME handling, DKIM)

Each change should be made incrementally with thorough testing to ensure no disruption to the existing email functionality.