Argh. So I set up posting via email last night and pointed to one of my accounts. I have no defintie evidence, but apparently "Radio Userland" fetches the mail and discards any mail which doesn't have the magic subject string. Again, no direct evidence except that I expected multiple notes to be in that mailbox this morning, and none were. The posting interface worked more or less as expected, except with the surprise discard feature. There doesn't appear to be a log of mail fetching activities, so I can't tell exactly what happened. I'm hoping it's something I screwed up, as I think it's a neat feature.