The format of email address is usually username@domain. Com (i.e., username @ hostname. domain name)

where username is the username (i.e., email account name, which is set by yourself when registering email), and the domain after @ Com is the host domain name. For example, the email format of Tencent is generally xxxx@qq. Com(xxxx is QQ number).

The user name and the host domain name are separated by @. This is to make people have easy-to-identify e-mail addresses. Tomlinson, the e-mail designer, decided to use the @ symbol.

writing format of major email addresses:

1. writing format of Tencent qq email: qq number @qq. Com (such as: 123456789@qq. Com)

2. Writing format of Netease 163 e-mail: user name @163. Com (such as xiaowang@163. Com)

3. The writing format of Alibaba Cloud email: user name @aliyun. Com (such as xiaowang@aliyun. Com)

4. Writing format of Google email: user name @gmail. Com (such as xiaowang@gmail. com）