Two ways to do it:
1 - "forward as .eml attachment" in web mail or desktop mail app.
2 - "view message source" ("show original message", etc) in web mail or desktop mail app, save to plain text file, send as attachment.
Just forwarding is going to be much less useful... but perhaps if the options above aren't possible...
Thanx a lot for your respons Kostya.
Just sent you an email with the txt file...
