I have a Yahoo group to migrate with no Moderator or List owner - he's been uncontactable for a long time and is believed to be ill. I've managed, with another tool, to download the whole message base to a Sqllite database, but having only member access there are nearly no email or other details of the list members. Are there known to be any ways of getting the message base into groups.io? It seems clear that the standard transfer cannot work.
Jim C