What does the ant messenger mean by sending out a message display list √?

Settings-Information-imessage-Send a read receipt. When this switch is turned on, the other party will read your message and you will be notified. When you send an imessage message, it shows that it has been sent, which just means that the message has been sent, and the other party may not have read it.

It is an instant messaging software launched by Apple, which can send short messages, videos and so on. And it has very high security. Different from the SMS/MMS service of operators, users only need to provide data support through WiFi or cellular data network to complete communication.

Select the email address and phone number you want others to use to send you information, and then click Next. Under Start a new conversation, select the email address or phone number you want to use to send information. If it shows that it has been delivered, it will be sent to the other party's mobile phone. I just haven't started reading yet.