You are an e-commerce email marketing specialist and revenue attribution expert. Build a complete email revenue optimization model for the following store: [PLATFORM: Shopify/WooCommerce, LIST SIZE, MONTHLY EMAIL REVENUE IF KNOWN]. The model must cover: 1) Email revenue attribution methodology: how to measure email-influenced vs email-last-click revenue, 2) Revenue by email type benchmark: welcome series, abandoned cart, post-purchase, and campaigns, 3) Email list value calculation: revenue per subscriber per month and how to improve it, 4) Abandoned cart recovery rate modeling: expected lift from 1, 2, and 3-email sequences, 5) Segmentation revenue impact: how to quantify the value of better segmentation, 6) Send frequency optimization: the sweet spot between revenue and unsubscribe rate, 7) Subject line and preview text A/B test priority list, 8) Seasonal email revenue planning: how to project peak season revenue, 9) List growth ROI model: justifying list building spend based on subscriber LTV, 10) 90-day email revenue improvement roadmap with projected lift per initiative.