Cannot receive text message delivery report. If you use the same machine with a mobile phone number, you can receive it without any problem. It is China Unicom’s 3G card.

The information reporting function is open to users on your own network. If you send information to users on other networks, no report will be sent. That is to say, if you use a China Unicom number to send messages to mobile users, you will not receive the message delivery report, but if you send messages to China Unicom users, you will receive the message delivery report, which is only open to self-network users. You can also try to use your mobile number to send messages to your China Unicom number and you will find that you cannot receive the message delivery report.