These instructions gets the message as a whole in outlook.
”File” / ”File” -> ”Save As” / ”Save as” -> format. EML, change the file name to suitable (spam sample etc), and save.
By default stored in the ”My Documents” folder.
Open the ”My Documents” folder, select ”Tools” -> ”Folder Options” -> ”View” tab -> circle will change from the ”Hide extensions for known file types” -> Apply
Following this, the file extension is changed “Txt”, and then that can be sent attached in such a way that the message will not be broken in the outlook ”mangle”.