LISTSERV doesn't  "obey" a :fformat  tag when  processing a DIST  job. It
gets a  series of  LRECL 80  records, which it  may or  may not  have the
proper tools to  decode, and which may correspond to  more than one file,
and forwards  it 'as is' to  the recipients. The sender  should make sure
that  he sends  files in  a  format that  can  be understood  by all  the
recipients.
 
Besides, if all the brand-X machines on the network spent 1 day writing a
trivial  Netdata decoding  program, it  would make  life much  easier for
everybody.
 
  Eric