[exim] How to split cc's & bcc's into separate messages

Is there a way to take one email addressed to 5 people with cc's (for
instance) and split them into 5 separate copies each addressed only to
one recipient?

My system analyzes emails after the fact and treats them differently
depending on who it's being sent to.

Since the only thing exim does is accept the email and queue it, I'd
like to split and copy before it hits the queue.