PHP 4.3.9 function mail and safe_mode

Hello,
My PHP 4.3.9 works in safe mode.
can I force change header "return-path:" using mail function?
I try, but it doesn't works.
I change header "From: " successfully, but not "Return-path"
Also I try add 5th parameter "-f my@address" in mail function but it
not working in safe_mode.
Please help me.

Regards,
Peter.