jmitchel wrote:

We opened the XYZ DL, "select members" from the global, then clicked
"update now", Save and close.

I'm unsure why you think "Update Now" is how you add new DL members. After
clicking Select Members, select the members from the various address lists,
click the Members button, click OK, then Save and Close. You don't need the
"Update Now" button. More often than not, "Update Now" will change
something you don't want changed.
--
Brian Tillman [MVP-Outlook]