problem with php mail 'From' header

[bubykung]

I'm building a website that sends and email to a user when he registers.My code (the gist of it):\[code\]<?php$to = "[email protected]";$subject = "Test mail";$message = "Hello! \nThis is a simple email message.";$headers = "From: [email protected]";$headers .= "\r\nReply-To: [email protected]";$headers .= "\r\nX-Mailer: PHP/".phpversion();mail($to,$subject,$message,$headers);echo "Mail Sent.";?> \[/code\]the problem is that when the mail is delivered, the from header remains \[code\][email protected]\[/code\], while reply-to gets changed to the specified value.\[code\]box123.bluehost.com\[/code\] is the hostname of the server on which the website is hosted.So what am I doing wrong? What can I do to get the "From" address the same as the reply-to address?Is it something I'm doing wrong, or is the web host playing foul?