We recently migrated to a new contact management system. We did an email campaign and received 1,022 undeliverable emails. Most of these were people who left their jobs. These were valuable contacts to us and we would like to either update their email address or change the person's name and get their new email addres and add them into our system. This is the process you would undertake: - we send you a data file of the 1,022 bad emails (e.g. mark@cocacola.com as an example) - you...