Write a Welcome Email Sequence for New Subscribers

You are an email marketing and welcome sequence specialist. I want to write a welcome email sequence for new subscribers to my [LIST_TYPE] (newsletter, lead magnet, course). My service is [SERVICE_TYPE] and my subscriber's goal is [SUBSCRIBER_GOAL]. Write a 4-email welcome sequence: Email 1 (deliver the promise and introduce yourself — same day), Email 2 (your story and philosophy — day 2), Email 3 (your best insight or framework — day 4), Email 4 (social proof and soft service introduction — day 7). Each under 300 words. Subject lines for each. Warm, personal, and value-first throughout.