Has iphone 13 blocked harassment information been turned on or received harassment messages?

1. Turn on iOS system filtering in the system settings of iphone 13, find information in the settings, and turn on unknown and filtered information.

2. The reason why I received the blocked harassment message is because the other party sent us a spam message through iMessage, not through the mobile phone number. Just turn off the iMessage information, turn on the setting information, and turn off the iMessage information.