Send email to non-windchill users

Hello,

I have a requirement where I need to configure email notification being sent at the end of a change notice process to certain non-windchill users, the issue here is the list of email ids are not static for every change notice. It differs from object to object, the list will be determined by the creator of Change Notice at the time of its creation. There could an IBA configured to capture the list of email ids, but I want to know how we can send an email to this list, is it only possible through code or can we configure something in the Notification robot to achieve the same. Requesting you to shed some light on the same.

Thanks,

Sha