[Antennaware] Returned mail--"please try again"

[dh5hv@t-online.de (postmaster)]

--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/html
  application/octet-stream
--- StripMime Errors ---
A message with no text/plain section was received.
The entire body of the message was removed.  Please
resend the email using plaintext formatting
---