Welcome Series Architect

Design a 7-email welcome series for [brand] targeting [customer segment]. Email 1: Brand story and value proposition with 3 subject line variants. Email 2: Social proof and success stories with segmentation triggers. Email 3: Educational content establishing expertise with content upgrades. Email 4: Product/service deep dive with interactive elements. Email 5: Exclusive offer with urgency mechanisms. Email 6: User-generated content and community invitation. Email 7: Feedback request and preference center. Include A/B test variables, timing sequences, and performance benchmarks for each email.