I sent you the file, and for anyone else that's interested, I'm going to keep it here:
http://luminare.no-ip.org/backtfu.mod for a while.
[EDIT:]
The server refused to accept my email, stating:
"The error that the other server returned was: 550 550-5.1.1 {mx038} <daxb at gmx de>... Sorry, your envelope sender has been denied: The recipient
550 5.1.1 does not want to receive mail from your address. (
http://portal.gmx.net/serverrules ) (state 14)."
Well, the link I provided (my own server) should hopefully work.