What is e-mail address ?

It is the name that identifies an electronic post office box n a network where e-mail can be sent. Different types of networks have different formats for e-mail addresses. On the Internet, all e-mail addresses have the form:
@
For example,
yourname@google.com
Every user on the Internet has a unique e-mail address. The term e-address is commonly used as an abbreviation for e-mail address.