I'm currently running exchange 5.5 sp4 enterprise. I have been given a list of 300 SMTP address of external users (new sister company) and asked to create a custom Recipient for each. I am to have all the users show up in the current GAL or create a 2nd GAL or listing/Group that users can choose names from. I would prefer to create a group reflecting the sister company name and then choose address from that list. Is this possible??