Receiving Messages From Unknown Senders. Tap on the toggle to enable this feature. Take a look at Settings Messages on your iPhone.
Go to your Messages app. From the home screen of your iPhone tap on Settings 2. Is Filter Unknown Senders turned on.
From the home screen of your iPhone tap on Settings 2.
But have you ever gotten a text message from an unknown sender. You can change your preferences so that Communicator blocks all messages from unknown senders. You should see Filters in the upper-left corner if youre not already on the filters screen. When you tap on an unknown iMessage if it looks like spam you can tap Report Junk at the bottom to send it to Apple.