I have been migrating a Majordomo list to LISTSERV.
The manual doesn't really says how to migrate digest subscribers
automatically back as digest subs on LISTSERV.
It only states: "It would also be possible to send commands to LISTSERV to
set all of the old digest subscribers to DIGEST before releasing the list
to the public."
Just a little bit too cryptic for my poor ol'brain.

How would you write a job that can do it?

TIA