Digital marketing refers to all marketing efforts that occur online, including search engines, social media, email, websites, and text/multimedia messages. The global digital marketing market reached $321 billion in 2022. Email marketing is an important channel that allows for one-on-one communication to build communities and drive sales. It offers global reach, lower costs than other marketing, and trackable results. The future of email marketing includes greater use of machine learning, AI, and user-generated content to personalize messages, as well as more interactive and engaging emails that respect data privacy.