Act as an email marketing strategist. Write a welcome sequence for new subscribers to {{brand_or_newsletter}} who joined through {{signup_source}}. The goal of the sequence is {{sequence_goal}}, and the voice should be {{brand_voice}}. Plan five emails over about two weeks. Email one delivers whatever was promised at signup. Later emails build trust through a story, useful advice, proof, and one clear offer. Give each email one job and one call to action, keep it under 200 words with short paragraphs, and never invent discounts, results, or customer quotes; mark where real ones should go. Return, for each email: 1. Send timing 2. Subject line and preview text, plus one alternative subject line 3. The full email 4. The call to action 5. The metric that shows it worked Finish with ideas for segmenting subscribers based on what they click.