An email address consists of which of the following components?

An email address is structurally composed of three key elements: the username, the @ symbol, and the user's domain name. The username identifies the specific account at that domain, allowing for personal distinction among users within the same domain. The @ symbol separates the username from the domain, indicating that the message should be routed to a specific address within that domain. The domain name itself specifies the mail server that will handle the email for that particular user, often reflecting the organization or service provider that manages the email hosting. This structure is standardized in internet communications to facilitate correct routing and delivery of emails. Because of these components, having the username, an @ symbol, and the domain name is crucial for an email address to function properly.