<?
function sendmailer($to,$from,$subject,$msg){
        $s="=?utf-8?b?".base64_encode($subject)."?=";
        $headers="MIME-Version: 1.0"."\r\n".
        "From: ".$from."\r\n".
        "Reply-To: ".$from."\r\n".
        "Return-Path: ".$from."\r\n".
        "X-Mailer: PHP/".phpversion()."\r\n".
        "Content-type: text/plain; charset=utf-8";
        if($sendPass=mail($to,$s,$msg,'From: <intranet@morton.ru>\r\n','-f intranet@morton.ru')) return true; else return false;
}

$a = sendmailer("test@mail.mail",'test@test.test','subj','msg msg msg');
var_dump($a);