Where can I see the blacklisted SMS intercepted by Apple?

Turn on the iPhone and find the Settings icon. In the Settings option, locate the Notification sub-icon, and then click Enter.

After entering the notification center, select "Information" in it. Locate "Show iMessage reminders for the following people" and select the "Show reminders in my address book" option.

Click Settings, select Information, and click Blacklist. Select Add, and all your contacts will pop up automatically. Select the contact you want to block, and you will not receive calls, messages or FaceTime calls from the blacklisted contacts.