You are right, errors that go to owner-listname do not have the usual
subject because they do not go through the loop detector and are
forwarded to you at a much lower level. I cannot just forward them to the
list address and make them go through the main post-to-list code with the
loop detector and the formatted subjects because there is no guarantee
that they would then be detected as delivery errors. Instead I have added
code to the owner-xxx forwarding to generate the same subjects and
headers you are used to. It will be in the next release.
Eric