.Mac additional email address
I have a @mac.com account. Back then you could create a different email address under a same .mac account. Not aliases but separate one meaning it has its own password and you can't see email transactions of the created address while with aliases you can see everything.
So back then I created another email address under my own .mac account for my family member and I completely forgot about its existence until recently.
My question is, is there a way to check the status of those email addresses today? Since the address is no longer used and I was wondering if I could delete it.