How to send a short message when logging in to 189 mailbox?

After opening 189 mailbox, 50 "self-writing short messages" will be presented every month, which can only be sent to CDMA users of China Telecom through the WEB login mode of 189 mailbox.

So what should I do if I run out of these 50 self-written short messages? Don't worry, we have another method that will never be exhausted:

Mode 2:

189 will send an email reminder in the form of a short message after receiving the email. Content: "Your 189 email has been received [abc@ 163.com] Subject: Have you eaten? . Tip: reply a to read this email. "

At this point, you may have understood, yes, we use the title of the email as the content of the short message. You can make an agreement with your friends in advance: the title of the email is short message content, and the email can have no body. Your friend will understand what you mean when he sees the title of the email. There is no need to reply A to read the content of the email.