How to cancel the SMS interception function of Apple's mobile phone

There are two ways for Apple to cancel SMS blocking function, for reference only:

1. Check whether iMessage is closed.

Settings-Information -"iMessage ",and then open iMessage.

Because iMessage can send messages to our mobile phones without review, many advertisers take a fancy to this and use it to put in a lot of advertisements.

2. Check whether "Filter Unknown Senders" is turned off. If it is open, please close it.

Settings-Info-Filter unknown senders and open it.

Filtering unknown senders is the SMS interception function of Apple's mobile phone. Turn on the phone, and the phone will no longer intercept short messages.