I downloaded a Zhaopin recruitment app, and when I fill in the information, I will be reminded that this email address has been used, which means someone else registered with your email address.

Many people should know that a Gmail user name can be changed into "aliases" for many different purposes by setting. Of course, this is not the original intention of Google, but these functions do bring us some convenience.

E-mail registration:

For the change of suffix, because Gmail trademarks in some countries were not well discussed before, Gmail trademarks could not be used, so we had to use google mail, which is easy to understand. It seems that all the trademarks in the world have been settled now. If it's just for registration, just transform yourself when filling in Gmail. You don't need to go to Gmail to set it up. Different mailboxes will appear in the same inbox.