Where is the setting of Apple SMS interception?

The method path of setting SMS interception for Apple mobile phone: Settings-Information-Turn on "Filter Unknown Senders". Apple mobile phone, a short message filtering function, ordinary people will not notice. After opening, it will filter out a lot of spam messages, which is very practical. If you must use the iMessage function, you can also turn off mail reception in the message, or uncheck mail reception. The scale of "SMS harassment" refers to SMS harassment, which Apple mobile phone users hate. More than 99% of Apple mobile phone users in China have received spam messages more than once. More than two-thirds of Apple mobile phone users said that they had been bombarded by SMS harassment and telecom fraud, which brought great troubles to their daily lives, and even more than 20% of Apple mobile phone users suffered losses because of harassing SMS. Among the harassing messages received by mobile phone users, advertising promotion messages account for the highest proportion, followed by operators' messages.