Please help me set up an email marketing automation system using Gmail: 1. Analyze my contact list and group them by customer type and value; 2. Create a library of personalized email templates ; 3. Design an email subject line optimization strategy to increase open rates; 4. Establish email sending time optimization to find the best time to send; 5. Create an A/B testing framework for email content; 6. Set up an email tracking and effect analysis mechanism; 7. Establish customer segmentation and precision marketing strategies; 8. Optimize email signatures and brand elements; 9. Create email autoresponders and customer service processes; 10. Establish email compliance and privacy protection measures; 11. Design email conversion funnels and customer journeys; 12. Generate email marketing ROI analysis and improvement suggestions.