Apple SMS has been sent, have you seen it? Apple SMS has been sent, can you see it?

1, Apple's SMS shows that it has been delivered, indicating that the recipient has successfully received it, but it is impossible to show whether the other party has checked it. Just to remind you that it has been delivered. If the other party blacklists you, the message will be blacklisted automatically. Your information will not be displayed in the other party's message list unless the other party takes the initiative to cancel hacking.

2. So sending means that the whole sending process of SMS is successful, but there is no feedback mechanism to show whether the other party has checked your number or blacklisted your number.