Email Personalization involves tailoring email content based on recipient data such as name, location, past interactions, purchase history, and behavioral patterns. Personalized emails improve engagement, conversion rates, and customer satisfaction. Techniques include dynamic content insertion, personalized subject lines, and segmented email campaigns. For instance, an e-commerce company may send personalized product recommendations based on browsing history, while a SaaS provider may send renewal reminders with user-specific insights. Advanced CRMs and email marketing tools like HubSpot, Mailchimp, and Klaviyo offer automation and AI-driven personalization features. Email personalization strengthens customer relationships by delivering relevant, timely messages.