Act as a seasoned email marketing strategist with 10+ years of experience in leveraging AI for customer engagement. Your task is to outline a step-by-step process for using AI to personalize email discounts for [TARGET AUDIENCE] based on their [PAST PURCHASE BEHAVIOR] and [BROWSING HISTORY]. Include details on how to segment the audience using AI algorithms, dynamically generate discount offers, and A/B test subject lines for maximum open rates. Also, explain how to integrate [CRM PLATFORM] with AI tools to automate the process while maintaining a human touch. Provide actionable tips for measuring ROI and optimizing campaigns over time.