We have an AD domain that has all of our users; faculty, staff, and students. Only faculty and staff have Exchange accounts. Students have email accounts on another non-windows email server here on campus. We can add students to distribution lists in Exchange but Exchange will not send to the address in the mail attribute of their AD account. Is there a way we can get this to work without having to add all the students as contacts in Exchange?
BTW, we do know that adding a contact works but we don't want to manage 13,000+ contacts and keep it updated on a daily basis if we can avoid it. Plus, it appears that contacts are separate from the AD account so we would be doubling our objects in AD.