How to prohibit strangers from sending messages on WeChat?

I can do it. As long as we turn off the setting of adding friends to strangers, because strangers only need to send us messages by adding friends. As long as you turn this off, he can't send messages. Well, follow my steps.

Operate the mobile phone k40

Wechat version 8.0.37

1. Open WeChat, click My, and then click Settings.

2. Click on the friend permissions.

3. First, you need to verify when you add me as a friend, and then click the way to add me.

4. All the ways to make friends with you are closed, and he can't find you.