I suggested to W. Wesley Groleau,
| If we could have kept the heads we could have done it without an rcfile:
| mkdir directory_name
| formail -ns procmail DEFAULT=directory_name/ /dev/null < folder &
It occurred to me later that we could *almost* do it without an rcfile:
formail -I "" -ns procmail DEFAULT=directory_name/ /dev/null < folder &
but that would, however, leave a "From foo(_at_)bar timestamp" line at the top
of each saved message. There is no way to specify raw mode on the command
line.