@123arnie -- do all the IDs show up when you are composing the E-mail, or does each recipient see the IDs of all the other recipients?
For the former, enter the name of the group, and do NOT click to "expand" the name into the list of IDs.
For the latter, enter the name of the group into the "BCC:" (not the "CC:") field. Each recipient will only see their ID. For some E-mail programs, the "BCC:" field is not visible until you ask that it be visible.