The purpose of this paper is to provide a low-cost, effective way to teach emotional intelligence (EI) skills for email communications by utilizing Dale Carnegie's 30 Human Relations Principles. Our teaching approach is based on an actual multiple-party negotiation that included an executive from a Fortune 500 Company. Utilizing negotiation enhances students' critical thinking about real-world, business decision-making scenarios. Active learning is incorporated into the project through student collaboration and reflection. Finally, the project can be administered completely online through the school's learning management system, which reduces demand on valuable class time. We provide extensive resources to assist instructors in teaching EI and administering the project.