So I realized, when a truncated Fudge List message came (partly) through, that I hadn't brought the fix over. So in the course of bringing the fix over, I broke the software completely, and it was sending out blank messages. (*Really* blank. No header, no body.) I think a couple Fudge List messages and a Celandra message may have gone that way. They're fine in the archives, but mail recipients got bupkis... if you got a blank message from wirebird+error, that was what the mailhost here tried to extrapolate from the blankness.
Should be fixed now.