How to prevent the other party from sending messages, and we can't send messages without seeing him?

According to different situations, there are many ways to realize the function of "mute" or shielding others from sending information, including:

1. blacklist: In the application, you can add the other party to the blacklist, so that the other party can't send you messages. But this only blocks the function of sending you messages, and can't prevent the other party from seeing your messages.

2. Stealth mode: In some chat applications, stealth mode can block messages sent to you by the other party, and you can't receive messages from others.

3. Set privacy rights: In some applications, you can adjust privacy rights and set that only friends can send you information. In this way, only friends in the white list can send messages.

It should be noted that banning words or blocking information may affect and hurt each other's feelings. It is recommended to carefully consider and communicate before use, and maintain good interpersonal relationship.