There are four parts for an email address which include the username, an @ symbol, domain name, a dot, and the domain. Let us know what these are.
Username: This part is usually the name of the person to whom the mail is sent. (firstname.lastname@example.org)
@ symbol: This separates the username and domain name. The symbol @ was invented by Ray Thomilson in 1971. (email@example.com)
Domain name: This refers to the mail server, the place where your email is stored. (firstname.lastname@example.org)
A dot (.): This separates part of the address.
The domain: Domain tells what type of web page you are using (.com,.org,.edu, etc…). Eg: (email@example.com)