A well-structured webinar recap email should include the following elements: 1. Subject Line: A compelling subject line to grab attention. 2. Introduction: A brief thank you message and a summary of what the email contains. 3. Key Takeaways: Bullet points or short paragraphs highlighting the most important points. 4. Call to Action (CTA): Encourage the recipients to watch the recorded webinar, download resources, or contact you for more information.