My site runs IBM, VAX and UNIX equipment. I set up a LISTSERV discussion list for a 'communications' class - most of whom subscribed from their VAX accounts. Whenever anyone posts to the list, the item gets distributed to all 500+ subscribers. The problem is, each item delivered to an ID on the vax contains a X-Envelope-to header which lists all 500+ subscriber ids on that system. A one line message gets 8-10 SCREENS of headers. Some of the VAX mailers can be set not to display those headers but they are all included in the users 'notebooks' - resulting in 'notebooks' that are 90-99% overhead ( and VAX notebooks, a.k.a. folders, cannot be edited as easily as VM ! ) Is there anything that can be set in the LIST headers to prevent the formation/inclusion of the X-Envelope-to header ? If not, is there anything that can be done on a VMS system ? ( PMDF setting/setup at system or user level ? ) TIA - mike