One of my clients was poking around their ListMail earlier today, and changed the name of one of the lists and then changed it back again. They claim this was the only change that was made. Now, however, all emails sent from ListMail are blank! No header, nothing. I can't figure out what's happened; they don't have access to anything else on the server, and everything looks ok in the ListMail configuration. Any idea what might be going on?
