New address added in cc list when the issue is still open and should be notified that added person everytime as the cc people receives the mail?

I have a query regarding as below:

If a new address added in the ‘CC’ list in the email correspondence by the
client or owner while the issue is still open, gets added in the RT system
in its ‘CC’ list for future correspondence.

I want to keep the added address permanently in RT and the email
correspondence should be notified that added person every time as the cc
people receives the mail.

Can any one help on this issue?

Thanks!!!

With Regards,

Krishna Prasad