Is there a way the system when mailbox quota has exceeded, the system will identify who was that so that we can advise the owner or remove them from the list....In case we sent email with 20 people in the cc list, we need to sort this 20 people one by one to identify and remove her/him from the cc list for the email to be sent...

My suggestion for the system to allow the mail to be distributed to the individuals and send delivery failure to the sender for the email add that exceeded its quota, is this possible?

Thanks