Mac.com Primary Apple ID Can't Send Mail From
I have a friend who has a Mac.com as his primary Apple ID. He can authenticate using @mac.com and access iCloud email, etc., but he can only send email as @me.com or @icloud.com.
How can he, and his wife and daughter who both have the same issue, get Apple to fix their iCloud configuration so they can send email from @mac.com as well? Or, failing that, to change their Primary Apple IDs to @icloud.com.
I realize they can create alternate/alias addresses for this purpose.
Thanks