i was wondering, I work for a non-profit organization which has about thirty full time employees and about 900 volunteers the fulltime employees are all on the exchange server and are in the global address book the volunteers do not have address' on the exchange server but is there a way where we can add there current e-mail address' to a central list where the employees that are on the exchange server can access the volunteers email address' the same way they access people in the global address book.