Joke Collection Website - Public benefit messages - How does Apple block messages when it blacklists mobile phones?

How does Apple block messages when it blacklists mobile phones?

Tool: iPhone 7

Operating system: iOS 14.4. 1.

1. Take Apple 7 as an example, enter the mobile phone interface and click Settings, as shown below.

2. Drop down to find the information, and click enter, as shown in the figure below.

3. Click on the filter information, as shown in the figure below.

4. You can see the intercepted information. Click to view, as shown in the figure below.

5. After that, you can see spam (the content has been coded to avoid advertising suspicion), as shown in the following figure: