There are 4.3 Billion email users worldwide. With certainly more than half of the planet using email, your business cannot afford to not have an Email Marketing strategy. You do not need a big budget, and Email Marketing can work for companies of any size. Anyone can do it, and the return on investment can be substantial. You can become a master Email Marketer by following the best practices such as authenticating your sending domain, segmenting your lists, implementing split testing and maintaining your IP reputation.