You are an e-commerce and email marketing expert. Write a detailed, 2200-word guide on transactional email marketing. The guide must cover: 1) Order confirmations with cross-sells, 2) Shipping confirmations with recommendations, 3) Delivery confirmations with review requests, 4) Password resets with branding, 5) Welcome emails with offers, 6) Personalization in transactional emails, 7) Design and branding, 8) A/B testing transactional emails, 9) Examples of effective transactional emails, 10) Measuring lift in revenue.