>  > I use RMAIL and receive tons of emails per day.  I can try and
>  > look for such a message and keep it if I see one.  But I need to
>  > understand what is an email message with "more than a single MIME
>  > part, not all of them HTML".  If an email with a text/plain part
>  > followed by a text/html part, not embedded into a multipart
>  > container, satisfies your definition, I think I can easily find
>  > one.
>
>that's exactly what I mean.  But in order to manifest this bug,
>it needs to have some lines that are long enough to be continued
>or truncated.

Let's try with this one.