Package detail

@push.rocks/smartmail

lossless49UNLICENSED2.1.0

A unified format for representing and dealing with emails, with support for attachments and email validation.

email handling, email validation, email formatting, typescript

readme

Improvement Plan for SmartMail

Current Code Analysis

Core Components

  • EmailAddressValidator: Validates email addresses checking for validity, whether they are disposable or free

    • Uses MX record checks to validate domains
    • Has a domain map from external source that classifies domains as 'disposable' or 'freemail'
    • Has placeholder 'reason' field in results that's not implemented ("todo")
    • Fetches domain list from GitHub or falls back to local copy
    • No validation of email format before DNS checks
  • Smartmail: Email representation class

    • Basic email structure with from, subject, body
    • Supports file attachments via smartfile
    • Uses mustache templates for subject and body
    • Lacks recipient handling (to, cc, bcc)
    • No method to send emails
    • No HTML body support

Dependencies

  • Uses several @push.rocks packages:
    • smartdns: For DNS lookups
    • smartfile: For file handling/attachments
    • smartmustache: For template processing
    • smartpath: For path operations
    • smartrequest: For HTTP requests

Testing

  • Basic tests for EmailAddressValidator
    • Tests validation of regular, free, and disposable emails
    • No tests for invalid email formats or edge cases
  • Minimal test for Smartmail creation
    • No tests for attachments, templates, or other features

Enhanced Improvement Plan

  1. [x] Complete the EmailAddressValidator implementation

    • [x] Implement proper reason messages for validation results
    • [x] Add email format validation before DNS checks (RFC 5322 compliance)
    • [x] Add local part validation (check for illegal characters, proper format)
    • [x] Improve domain validation (check syntax before DNS lookup)
    • [x] Add email normalization (handle case sensitivity, plus addressing)
    • [x] Implement caching mechanism for DNS lookups to improve performance
    • [x] Add option to disable online domain list fetching
  2. [x] Enhance the Smartmail class

    • [x] Add support for multiple recipients (to, cc, bcc arrays)
    • [x] Add email preparing capabilities via MIME format
    • [x] Support HTML email bodies with plain text fallback
    • [x] Add reply-to and headers support
    • [x] Implement method to convert to standard email formats (MIME)
    • [x] Add email priority and importance flags
    • [x] Add validation of email addresses used in from/to/cc/bcc
  3. [x] Improve testing

    • [x] Add tests for email format validation (valid/invalid formats)
    • [x] Test domain validation edge cases (non-existent domains, etc.)
    • [x] Add tests for attachment handling
    • [x] Test template processing with different data structures
    • [x] Add tests for HTML emails and conversion
    • [x] Test recipient handling with multiple addresses
  4. [x] Performance & security improvements

    • [x] Optimize domain list handling
    • [x] Implement intelligent caching strategy for validation results
    • [x] Add configuration options for external service calls
    • [x] Ensure secure handling of email data and attachments
  5. [x] Documentation improvements

    • [x] Update README with comprehensive examples
    • [x] Add detailed API documentation with JSDoc
    • [x] Document all configuration options
    • [x] Add usage examples for common scenarios
    • [x] Document security considerations
    • [x] Add TypeScript type documentation
  6. [ ] Advanced features

    • [ ] DKIM/SPF validation support
    • [ ] Implement email address suggestions for typos
    • [ ] Add disposable email detection improvements
    • [ ] Support for internationalized email addresses (IDN)
    • [ ] Email address reputation checking
    • [ ] Add email deliverability scoring
    • [ ] Implement bounce address validation
  7. [x] Code quality

    • [x] Add more TypeScript interfaces for clearer API definitions
    • [x] Improve error handling with specific error types
    • [x] Add configuration options via constructor
    • [x] Make domain list updates configurable
    • [x] Improve code organization with better separation of concerns