When you write to others, of course, you should attach your signature at the end. E-mail, after all, is not the kind of instant messaging tool that you say "hmm" and I reply "hehe". Domestic friends or strangers seldom pay attention to this when sending emails, which is in sharp contrast with foreigners' emails. Don't people in China know this? Of course not. I clearly remember that the format of letters is something to be learned in primary school Chinese class. Writing an email to your good friend Li Hua often appears in English compositions, and the format has clear requirements.

Face different people, use different signatures. I understand the meaning of the topic. Indeed, people in China have a strange attitude towards the iPhone. It seems that as long as you show that you are using the iPhone, you are showing off. So, if you are a responsible person, please edit your email signature carefully.

Send an email to the boss, I use my full name; E-mail to friends, I use our friendly nickname; Send emails to elders, using their "birth names" from childhood to adulthood; E-mail your girlfriend with names you can't bear to look directly at.