Still all Apple email addresses bounce and I can’t deliver mail. This is the mac.com. me.com addresses and anything managed by Apple. There is no hope of getting this fixed. Apple has decided our Amazon mail server is a source of apam and that’s the end of it. The domain comcast.net has developed the same problem a few months ago.
Very sorry. Such users can log in a change their email to something else. Should not be a large problem as everybody has many email accounts nowadays.
Andrew