I believe it generates a unique/obfuscated email address that is provided to the provider but their messages to that address arrive at your real icloud address.

I believe it generates a unique/obfuscated email address that is provided to the provider but their messages to that address arrive at your real icloud address. Edit0: reference https://support.apple.com/en-us/HT210426 https://support.apple.com/en-us/HT210426