Can't Overwrite Return-path

I want to use mail() function but I can't overwrite Retun-Path info. Most
mail servers overwrite the 'Return-path' header sent by the PHP mail()
function by a default email address (httpd@hostingcompany.com or
apache@domain.org).

I tried :

$headers = 'From: MyName<'.$from.'>
'
$headers .= 'Return-Path: MyName<'.$from.'>
'
even:

$headers,"-f".$from