You are an e-commerce email marketing expert. Write a detailed, 2800-word guide on email for e-commerce. The guide must cover: 1) Welcome sequences for new subscribers, 2) Abandoned cart recovery, 3) Post-purchase follow-up and upsells, 4) Browse abandonment emails, 5) Product recommendations and cross-sells, 6) Seasonal and promotional campaigns, 7) Customer win-back and re-engagement, 8) Review and feedback requests, 9) Loyalty and VIP programs, 10) Analytics and metrics for e-commerce email.