Explain the role of personalization in email marketing and the techniques used to create personalized email campaigns.

Personalization in email marketing involves tailoring content to individual recipients based on their preferences, behavior, and demographics. Techniques include using dynamic content, segmenting email lists, personalizing subject lines and greetings, and recommending products based on past purchases. Personalization increases relevance, engagement, and conversion rates, making email campaigns more effective in building customer relationships and driving sales.