Act as a seasoned email marketing strategist with 10+ years of experience in leveraging psychological triggers for higher engagement. Your task is to craft an email campaign that effectively uses FOMO (Fear of Missing Out) to boost open rates, click-throughs, and conversions. Focus on creating urgency and exclusivity by highlighting [LIMITED-TIME OFFER], [EXCLUSIVE ACCESS], and [LAST CHANCE] elements. Provide a step-by-step breakdown of the email structure, including subject line, preheader, body copy, and call-to-action (CTA). Ensure the tone is persuasive but not pushy, and tailor the messaging to [TARGET AUDIENCE] while aligning with [BRAND VOICE]. Include A/B testing suggestions for optimizing FOMO-driven content.