Kirim email dari Localhost

Halo agan dan aganwati yang berbahagia :seneng
Lagi galau gara gara liat mantan jalan sama pacarnya :mad, iseng iseng nulis script buat ngilangin galaunya :lemes
Alhasil dapet 1 gan, kodenya sederhana, cuman kirim email dari localhost agan :malu
disimak yah, ini pake php model OOP (pake class & function) :seneng

class email{

 public $conf = array();

 function __construct($email){
  $this->from($email);
 }

 function to($to){
  $this->conf['to'] = $to;
 }
 function from($from){
  $this->conf['from'] = $from;
 }
 function subject($subject){
  $this->conf['subject'] = $subject;
 }
 function mailContent($content){
  $this->conf['content'] = $content;
 }
 function cek(){
  if(!isset($this->conf['to']) || !isset($this->conf['content'])){
   return false;
  }else{
   if(!isset($this->conf['subject'])){$this->conf['subject']='';}
   return true;
  }
 }

 function sendMail(){
  if($this->cek()){
   $to   = $this->conf['to'];
   $from   = $this->conf['from'];
   $subject  = $this->conf['subject'];
   $content  = $this->conf['content'];
   $header   = 'From: ' .$from. "\r\n". 'Reply-To: ' .$from. "\r\n" . 'X-Mailer: PHP/' . phpversion();
   $notif   = 'failed';
   
   if(mail($to, $subject, $content, $header)){
    $notif = 'mail send';
   };
   echo $notif;
  }
 }
}
/*
To send email with this class
------------------------------
*/

$emailAgan = "email_agan@gmail.com";
$target = "email_tujuan@gmail.com";

$me = new email($emailAgan);
$me->to($target);
$me->subject('test email');
$me->mailContent('testing');
$me->sendMail();

gimana, sederhana kan? :ngakak :cambuk