E-mail format: 123456@mail.com. The @ symbol is the email address format separator, 123456 is the email user name, and mail.com is the email server domain name.

E-mail, which we usually call e-mail, is a simulated post office. Through e-mail, information can be passed between users, including text information, picture files and video files. With the development of Internet technology, the storage capacity and security of e-mail have been greatly improved.

The formats of several common e-mail boxes are as follows:

QQ Email: QQNo. (number) @ qq.com.

163 E-mail: user name @163.com.

126 E-mail: user name @126.com.

139 E-mail: user name @139.com.

Sohu e-mail: user name @ sohu.com.

Gmail email: user name Gmail.

Hotmail email: user name @ hotmail.com.