The format of the e-mail address is :abcd@mail.com. According to international practice, the @ symbol is the separator of email address format, abcd before @ is the email user name, and mail.com after @ is the email server domain name.

Abcd as a unified user name, examples are as follows:

1, qq email: abcd@qq.com(qq user name is qq number);

2. Netease e-mail: ABCD @163.com;

3. The email address of126 is: ABCD @126.com. ..

/iknow-pic.cdn.bcebos.com/eaf81a4c510fd9C0b749Db2dd42a 2934a4db "target =" _ blank "title =" "class =" ikqb _ img _ alink ". /iknow-pic . cdn . BCE Bos . com/EAF 8 1a4c 5 10 FD 9 f 9 c 0 b 749 db 2 B2 DD 42 a 2934 a 4 db？ X-BCE-process = image% 2fresize% 2cm _ lfit% 2cw _ 600% 2ch _ 800% 2climit _1%2fquality% 2cq _ 85% 2fformat% 2cf _ auto "esrc =", gov, org, etc. Domain names are technically mail exchanges, not machine names.

At the same time, when entering the email address, be careful not to write @ as @, because the email system will automatically determine that this address does not conform to the format of the email address, so the email cannot be sent.

In addition, don't add symbols such as "."and "_" to email user names, which are easily overlooked. ?

/baike.baidu.com/item/%E7% 94% B5% E5% AD% 90% E9% 82% AE% E4% BB% B6% E5% 9c% B0% E5% 9d% 80/2284738 "target =" _ blank "