My guess is non-unique and regardless of MAIL or NOMAIL mode. /Pete At 11:10 02/10/2003 Monday, Nelson R. Pardee wrote: >I used the "lists sum" command and the report shows the total number of >subscribers to all lists on our host. Is this the total number of unique >subscribers, or is it simply the sum of the subscribers to all lists, not >accounting for addresses subscribed to multiple lists?