How to write the correct email format of Shantou Recruitment Network?

Hello, the correct email address format should be in the form of user name @ domain name, such as qq email user name @ qq.com. The user name in front should be your number, or English, mobile phone number and account number. Can't be represented by a web address, separated by an @ symbol. Note that there can be no redundant symbols before and after the @ symbol, followed by the domain name. The separator in the domain name is A., which is also an English symbol. Write it down below.