PHP mail help

[bitejones]

have been trying to use the php automatic mail function to send email to users who have forgotten their passwords....this function was working perfectly fine, i was recieving the emails perfectly, then all of a sudden the emails are no longer been delivered, i realise that the code is been executed because i am not getting a error on the code, just that when i check my inbox there is nothing there.....

$to= $search_email;

$subject="Forget Password";

$message="Hello Your Password as been recovered, Please do not reply to this mail, your password is ";

$message.=$search_password;

$from="[email protected]";

$headers="From: $from";

if(

mail($to,$subject,$message,$headers)){

$sign=1;

} 

 

 

 

 

 

as i said this was working perfectly before, all of a sudden its no longer working, HELP PLEAS