v0.1.0

[0.1.0] - 2025-02-06

Initial Release 🎉

Features

• Minimal Debian-based Postfix mail server image
• Built-in TLS support with automatic certificate generation
• SMTP relay capabilities
• Configurable via environment variables:
  • TLS settings (DOMAIN, SSL_COUNTRY, etc.)
  • SMTP relay configuration (RELAY_HOST, SMTP_USERNAME, SMTP_PASSWORD)
  • Custom Postfix directives via POSTFIX_ prefix
• Persistent storage support via Docker volumes:
  • /var/spool/postfix
  • /etc/postfix/certs
• Security-focused configuration:
  • TLS enabled by default
  • Proper file permissions
  • Minimal base image
  • No default passwords

Docker Support

• Multi-platform build support
• Exposed ports:
  • 25 (SMTP)
  • 587 (Submission)
• Docker Compose integration

Documentation

• Comprehensive README with setup instructions
• Environment variable documentation
• Docker Compose example
• Security considerations