How to provide a new profile photo and name to others in iMessage

When you receive an iMessage from an unknown party, how does Messages identify that person for you if they’re not already in your contacts22 Apple has a backchannel in its proprietary multimedia texting system that transmits your name and image to the recipient based on settings you can control. In iOS/iPadOS, go to Settings Share Name and Photo; in macOS, open Messages and go to Messages

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