Email marketing is still a powerful tool as it directly connects you to your user, unlike social media marketing. Having an email is compulsory at least for every smartphone user and most of the people actively use it. In email marketing what you do is that you make or start a conversation with your audience through direct interaction. However, in other modes of marketing like social media you just post about your services or product at random pages. In this case, it depends upon the user whether he or she is going to make attention to your advertisement or not. List of business emails United Kingdom is an essential tool for any company. https://slashdot.org/submission/12510536/importance-of-business-email-list-in-healthcare-industry-united-kingdom