I was trying out what would happen if some site incorrectly replied to the empty recipient address in error. I expected the message to end up going to postmaster. When I tried this out I found that the message just gets dropped without even a bounce. Setting up a catch all alias with a ".qmail-default" file didn't help. After looking around for a while I found that rspawn seems to ignore any message with an empty local part. Does anyone know why this was both set up not to generate a bounce and not be delivered someplace? I would have thought it would have made more sense not to accept the email in the first place so that the misconfigured remote site would have a chance to see a bounce there.
