<?php
$to = "alici@deneme.com";
$subject = "Konu";
$body = "Merhaba,\n\nNasilsin?";
$headers = "From: gonderen@deneme.com\r\n" .
    "X-Mailer: php";
if (mail($to, $subject, $body, $headers)) {
  echo("<p>Mesaj gonderildi!</p>");
 } else {
  echo("<p>Mesaj gonderimi basarisiz...</p>");
 }
?>