2. After clicking, the format shown in the figure below will appear, and the recipient will be filled in. For example, :kefu@chsi.com.cn, write a good theme.
3. Write what you want to write and what you want to reflect.
4. Click "Send" after writing.
After that, the other party will receive your email and see what you sent. If you haven't received the message for a long time, it may be that the other party hasn't replied or there are some problems, so you can appeal.