Who Runs Email Communications? A Look at the Prevalence of MX Records
Email remains a vital part of modern communication, with 347.3 billion emails sent and received daily worldwide in 2023. For each email to reach its intended recipient, mail exchange (MX) records direct it to the correct mail server.
While individual email users can create their own mail servers, most people use email services from established email service providers (ESPs) to avoid the complexity of running their own servers. These services typically provide storage, security features, and user-friendly interfaces, all without burdening users with maintenance.
However, some experts are concerned about the concentration of power within a limited number of companies controlling MX records. They warn of potential vulnerabilities if email routing relies heavily on just a handful of providers.