B2C lifecycle email, B2B cold email and AI SDRs, a copy-and-use prompt library, and the deliverability and compliance rules you can't skip. Most teams use AI to write subject lines and stop there. This guide argues that copy is the least valuable place to use it. The bigger wins are who you send to, when you send, the automated flows you send through, and a monthly audit that feeds the next month's plan. It shows how to connect AI to your ESP, give it the brand context it needs, and keep a human in the loop where it matters. It covers both tracks in practice: the full B2C and ecommerce workflow (brand onboarding, list growth, segmentation, core flows, campaigns, design and reporting) and B2B cold outreach (trigger-event research, sequences, sending infrastructure and a realistic AI SDR process). It closes with tool selection and pricing, Gmail, Yahoo and Outlook sender requirements, the laws that apply, a 30/60/90-day rollout and a master checklist. Every chapter rates its evidence: numbers that come from vendors are marked as such, and an appendix lists what couldn't be verified. It reflects platforms and rules as of November 2026, and it isn't legal advice.

• 12 key conclusions on where AI actually pays off in email
• Full B2C lifecycle workflow: segmentation, core flows, campaigns and audits
• A practical B2B cold email and AI SDR process
• Prompt library for segmentation, flows, campaigns, analysis, design and cold email
• Deliverability and compliance: Gmail, Yahoo, Outlook, BIMI and the law