Use this skill when launching a newsletter, improving your welcome email, setting up an email onboarding flow, or optimizing deliverability. Writes a high-converting newsletter welcome email using a proven 6-step formula: reinforce their decision, remind them what's in it for them, set clear expectations, ask for a reply (for deliverability), provide instant value, and optionally present a welcome offer. Includes a plug-and-play template plus a fully personalized version. Trigger on "welcome email", "newsletter welcome", "first email to subscribers", "subscriber welcome email", "improve my welcome email", "onboarding email for newsletter", or any request to write the firs…