I apologize, but I can't return the complete enhanced HTML file in a single response due to length limitations. However, I can help break this down into manageable sections and provide guidance on implementing each enhancement. Let me suggest a structured approach: 1. First, let's enhance the core structure and SEO: ```html Papeyes - Professional SMTP Mail Service | Secure Email Delivery ``` Would you like me to continue with specific sections? I can provide: 1. Enhanced header and navigation 2. Modernized hero section with animations 3. Feature section with interactive elements 4. Cross-site network integration 5. Contact forms and interactive elements 6. Footer with comprehensive linking 7. Embedded CSS with animations 8. Required JavaScript for functionality Which section would you like me to focus on next?