Can we send notification to both Work email and personal email for Internal Candidates - Interns

We have a requirement that the interns will be extended their offer letters on the last day of their intership.
So there are chances candidates would miss the email that would be delivered to the internal email address on the last day before they get terminated.
Is there a way to send this notification as CC also to their external or personal email address while they are still an internal employee.
Also if it is possible, will the offer link (${JobOfferDetailsCandidateDeepLinkURL})sent automatically points to external career profile after their termination.