What do you mean by pushing the mailbox?

Pushmail is an English word for pushing email. Traditionally, you log in to your email directly or through tools such as outlook to see if there is any new email, that is to say, dragging email to your computer is an active behavior. However, the demand for receiving emails from mobile phones is increasing. It is impossible to keep the phone online for a long time with the battery of the phone. Check whether there is any new mail. Therefore, the pushmail mail push service provided by operators came into being. Mobile phones don't need to be connected to the internet all the time. When there is new mail in the mailbox configured on the mobile phone, the mail server will automatically push the mail to the mobile phone, and the user will find that there is new mail. Like a text message ~