June,
 
    This is an example of a NETDATA format file being sent to a list, and
subsequently sent to all the subscribers via DISTRIBUTE. The "INM..." is
the tip-off that it's NETDATA format. Odds are that Mr. van Wingen is
using an MVS system, and creates his mail by typing into a PDS and then
"TRANSMIT"ting it to the list.
 
Ross