Several elements should be assessed during a heuristic analysis: - Subject Lines: Are they compelling and relevant? - Design: Is the design visually appealing and aligned with your brand? - Content: Is the message clear, concise, and engaging? - Call to Action: Are the CTAs prominent and enticing? - Personalization: Is the email tailored to the recipient? - Navigation: Is it easy for users to navigate through the email and take the desired action?