Giving sponsors/pledgers the option to receive a 1-time automated email that summarizes the campaign would be a great
way to increase transparency and give sponsors confidence in the good action that they took.

This bug would combine features of Bug #25244 and would influence the checkout when sponsoring (Bug #25274 &
#25247).

The sponsor would have to opt-in during the checkout process.

This should take 2-4 hours.