Email form is not working

Question

I have this index.html

<form name="index" method="post" action="send_form_email.php">

<table width="450px">

<tr>

 <td valign="top">

  <label for="first_name"><font color="white">Nume</font></label>

 </td>

 <td valign="top">

  <input  type="text" name="first_name" maxlength="50" size="30">

 </td>

</tr>

<tr>

 <td valign="top"">

  <label for="last_name"><font color="white">Prenume</font></label>

 </td>

 <td valign="top">

  <input  type="text" name="last_name" maxlength="50" size="30">

 </td>

</tr>

<tr>

 <td valign="top">

  <label for="email"><font color="white">E-mail</font></label>

 </td>

 <td valign="top">

  <input  type="text" name="email" maxlength="80" size="30">

 </td>

</tr>

<tr>

 <td valign="top">

  <label for="telephone"><font color="white">Numarul de Telefon(*)</font></label>

 </td>

 <td valign="top">

  <input  type="text" name="telephone" maxlength="30" size="30">

 </td>

</tr>

<tr>

 <td valign="top">

  <label for="comments"><font color="white">Mesajul</font></label>

 </td>

 <td valign="top">

  <textarea  name="comments" maxlength="1000" cols="25" rows="6"></textarea>

 </td>

</tr>

<tr>

 <td colspan="2" style="text-align:center">

  <input type="submit" value="Trimite"> 

 </td>

</tr>

</table>

</form>

and the send_form_email.php

  <?php

if(isset($_POST['email'])) {



    // EDIT THE 2 LINES BELOW AS REQUIRED

    $email_to = "contact@vestigedayz.com";

    $email_subject = "Comentariu Site";





    function died($error) {

        // your error code can go here

        echo "Ne pare rau dar se pare ca am intampinat o problema. ";

        echo "Erorile sunt:<br /><br />";

        echo $error."<br /><br />";

        echo "Te rugam sa dai backspace si sa refaci corect.<br /><br />";

        die();

    }



    // validation expected data exists

    if(!isset($_POST['first_name']) ||

        !isset($_POST['last_name']) ||

        !isset($_POST['email']) ||

        !isset($_POST['telephone']) ||

        !isset($_POST['comments'])) {

        died('Ne pare rau dar se pare ca am intampinat o problema.');       

    }



    $first_name = $_POST['first_name']; // required

    $last_name = $_POST['last_name']; // required

    $email_from = $_POST['email']; // required

    $telephone = $_POST['telephone']; // not required

    $comments = $_POST['comments']; // required



    $error_message = "";

    $email_exp = '/^[A-Za-z0-9._%-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,4}$/';

  if(!preg_match($email_exp,$email_from)) {

    $error_message .= 'E-mail-ul nu este corect.<br />';

  }

    $string_exp = "/^[A-Za-z .'-]+$/";

  if(!preg_match($string_exp,$first_name)) {

    $error_message .= 'Numele tau nu este corect.<br />';

  }

  if(!preg_match($string_exp,$last_name)) {

    $error_message .= 'Prenumele tau nu este corect.<br />';

  }

  if(strlen($comments) < 2) {

    $error_message .= 'Sectiunea de mesaj nu este corecta..<br />';

  }

  if(strlen($error_message) > 0) {

    died($error_message);

  }

    $email_message = "Detaliile sunt mai jos.\n\n";



    function clean_string($string) {

      $bad = array("content-type","bcc:","to:","cc:","href");

      return str_replace($bad,"",$string);

    }



    $email_message .= "Nume: ".clean_string($first_name)."\n";

    $email_message .= "Prenume: ".clean_string($last_name)."\n";

    $email_message .= "Email: ".clean_string($email_from)."\n";

    $email_message .= "Telefon: ".clean_string($telephone)."\n";

    $email_message .= "Mesaj: ".clean_string($comments)."\n";





// create email headers

$headers = 'From: '.$email_from."\r\n".

'Reply-To: '.$email_from."\r\n" .

'X-Mailer: PHP/' . phpversion();

@mail($email_to, $email_subject, $email_message, $headers);  

?>



<!-- include your own success html here -->



Multumim ca ne-ai scris. Iti vom raspunde cat de curand !



<?php

}

?>

Everything works OK, but I don't receive any email. Why? Everything looks to be OK what should I add or remove? I can't figure it out. I read this from a tutorial on the internet how you should create a contact form.