Thank you.
I saved the email as Raw in a folder on my desktop, then went to file-import mailbox in mail, and tried to import it. I got a message that it saved to an import folder in the mailbox list, but there is no such file. I tried making an Import folder and import it again, but it did not work.
Then I tried saving as Plain Text and Rich Text Format. I got an error that No valid Mail for Mac OS X files were found.
I have SpamSieve, could that be a problem?