Question

What is the use of Username and Domain Name of an e-mail message?

Answer 1

Answer:

An email address consists of four main parts: The username, the "@" symbol, the email domain and the root domain. This tells the mail server who the mail is for, where the message is delivered to and the type of connection being used. The domain section of the address is typically the company you work for, your ISP or a third party service such as hotmail or gmail.

Explanation: