Mozilla Mail and IMAP problem

[Scott R Ehrlich]

I have a user using Mozilla Mail (for Windows, but I don't believe the Windows
piece is relevent) and connecting to an IMAP account.

He created a local mailbox structure on his local system, and, over time, moved
mail from the server to the local structure on his system.

Now, I am working with him to move the messages from his local structure back to
the server.   He successfully migrated most of the messages, but a few, with
attachments and no message body, refuse to move, with the error:

"The current command did not succeed.   The mail server responded: Message
contains bare newlines."

What are my options to try and migrate the problematic messages back to the
server?

Thanks.

Scott