After much frustration, I figured out how to blog by email (followed the instructions on this page). However, following those instructions, I could only send text- no images, video, music, etc. In fact, if I attached anything at all to the email, the subject line would appear as the post title perfectly but the post would have no content whatsoever.
So, in my quest to upload files via email, I downloaded the postmaster plugin. I installed it and followed the directions on this page exactly.
Now, not only am unable to upload images via email, but I can't post text either. I know I can undo the plugin installation and resume posting text by email, but I'd really like to be able to upload images too. Can anyone tell me what might be going wrong?