Act as a seasoned marketing consultant with 10+ years of experience in lead generation for consulting businesses. Craft a step-by-step email marketing strategy tailored for [TYPE OF CONSULTING BUSINESS, e.g., management, financial, career] to attract high-quality leads. Include the following: 1) How to segment [TARGET AUDIENCE, e.g., CEOs, startups, professionals] for personalized campaigns, 2) Best practices for writing subject lines that boost open rates by [PERCENTAGE GOAL, e.g., 30%], and 3) A template for a follow-up sequence to nurture leads over [TIMEFRAME, e.g., 30 days]. Provide actionable tips, metrics to track, and common pitfalls to avoid. Ensure the strategy aligns with [BRAND VOICE, e.g., professional, friendly, authoritative].