I am trying to upload a list of contacts into My Emma as a "segment" and am unable to do so. I create a new import, upload the list and only one of the contacts is added to my new group. I believe that some of the contacts exist within the database already, but I'd like to upload this list so I can segment out 200 NEW contacts for a specific mailing. Note: All contacts were added into My Emma on the same date, so it is impossible to sort or segment them based on that criteria. How can I upload this list as a "segment"? OR Separate group? The file is an excel file with 200 email addresses.