Neither relevant nor true I'm afraid. A CC'd address will only get a copy of any reply if the recipient replies using "Reply All" instead of "Reply".
"Reply" replies to the sender only, "Reply All" replies to the sender and copies everyone CC'd into the original mail.
Quite why you'd CC yourself is beyond me, any reply would be addressed to you as you are the sender
I think post #4 answered the OP's question rather well....almost 3 months ago