Pomoc oko php skripte za email

<?php
$send = $_POST["send"];
$name = $_POST["name"];
$email = $_POST["email2"];
$subject = $_POST["subject"];
$message= $_POST["message"];

if(!empty($name) && !empty($email) && !empty($subject) && !empty($message))
{
$content = "-------------------------------E-mail Message-------------------------------\n";
$content .= "Vaše ime: $name\n";
$content .= "Vaša E-mail adresa: $email\n";
$content .= "Naslov poruke: $subject\n";
$content .= "Tekst poruke: \n$message\n";

mail($send, $subject, $content, "From: $email");

header("Location: putanja_do_stranice/poslat.htm");
}

else
{
header("Location: putanja_do_stranice/nijeposlat.htm");}
?>

function email_ok($email)
{
    if(!eregi("^[[:alnum:]][a-z0-9_.-]*@[a-z0-9.-]+.[a-z]{2,6}$",$email))
    {
        return false;
    }
    return true;
}
if (email_ok($email) == false) {
die() 'Email <b>'.$_POST['email'].'</b> je neispravno napisan.' ;
}

 <?php


$my_email = "email@email.com";

$continue = "/";

$errors = array();

// Remove $_COOKIE elements from $_REQUEST.

if(count($_COOKIE)){foreach(array_keys($_COOKIE) as $value){unset($_REQUEST[$value]);}}

// Check all fields for an email header.

function recursive_array_check_header($element_value)
{

global $set;

if(!is_array($element_value)){if(preg_match("/(%0A|%0D|\n+|\r+)(content-type:|to:|cc:|bcc:)/i",$element_value)){$set = 1;}}
else
{

foreach($element_value as $value){if($set){break;} recursive_array_check_header($value);}

}

}

recursive_array_check_header($_REQUEST);

if($set){$errors[] = "You cannot send an email header";}

unset($set);

// Validate name field.

if(isset($_REQUEST['name']) && !empty($_REQUEST['name']))
{

if(preg_match("/[^a-z' -]/i",stripslashes($_REQUEST['name']))){$errors[] = "You have entered an invalid character in the name field";}

}

// Validate email field.

if(isset($_REQUEST['email']) && !empty($_REQUEST['email']))
{

if(preg_match("/(%0A|%0D|\n+|\r+|:)/i",$_REQUEST['email'])){$errors[] = "Email address may not contain a new line or a colon";}

$_REQUEST['email'] = trim($_REQUEST['email']);

if(substr_count($_REQUEST['email'],"@") != 1 || stristr($_REQUEST['email']," ")){$errors[] = "Email address is invalid";}else{$exploded_email = explode("@",$_REQUEST['email']);if(empty($exploded_email[0]) || strlen($exploded_email[0]) > 64 || empty($exploded_email[1])){$errors[] = "Email address is invalid";}else{if(substr_count($exploded_email[1],".") == 0 || substr_count($exploded_email[1],".") > 3){$errors[] = "Email address is invalid";}else{$exploded_domain = explode(".",$exploded_email[1]);if(in_array("",$exploded_domain)){$errors[] = "Email address is invalid";}else{foreach($exploded_domain as $key => $value){if($key == 0){if(strlen($value) > 63 || !preg_match('/^[a-z0-9-]+$/i',$value)){$errors[] = "Email address is invalid"; break;}}elseif(strlen($value) > 6 || !preg_match('/^[a-z0-9]+$/i',$value)){$errors[] = "Email address is invalid"; break;}}}}}}

}

// Remove leading whitespace from all values.

function recursive_array_check(&$element_value)
{

if(!is_array($element_value)){$element_value = ltrim($element_value);}
else
{

foreach($element_value as $key => $value){$element_value[$key] = recursive_array_check($value);}

}

return $element_value;

}

recursive_array_check($_REQUEST);

// Check referrer is from same site.

if(!(isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER']) && stristr($_SERVER['HTTP_REFERER'],$_SERVER['HTTP_HOST']))){$errors[] = "You must enable referrer logging to use the form";}

// Check for a blank form.

function recursive_array_check_blank($element_value)
{

global $set;

if(!is_array($element_value)){if(!empty($element_value)){$set = 1;}}
else
{

foreach($element_value as $value){if($set){break;} recursive_array_check_blank($value);}

}

}

recursive_array_check_blank($_REQUEST);

if(!$set){$errors[] = "You cannot send a blank form";}

unset($set);

// Display any errors and exit if errors exist.

if(count($errors)){foreach($errors as $value){print "$value<br>";} exit;}

if(!defined("PHP_EOL")){define("PHP_EOL", strtoupper(substr(PHP_OS,0,3) == "WIN") ? "\r\n" : "\n");}

// Build message.

function build_message($request_input){if(!isset($message_output)){$message_output ="";}if(!is_array($request_input)){$message_output = $request_input;}else{foreach($request_input as $key => $value){if(!empty($value)){if(!is_numeric($key)){$message_output .= str_replace("_"," ",ucfirst($key)).": ".build_message($value).PHP_EOL.PHP_EOL;}else{$message_output .= build_message($value).", ";}}}}return rtrim($message_output,", ");}

$message = build_message($_REQUEST);

$message = $message . PHP_EOL.PHP_EOL."-- ".PHP_EOL."Thank you";

$message = stripslashes($message);

$subject = "FormToEmail Comments";

$headers = "From: " . $_REQUEST['email'];

mail($my_email,$subject,$message,$headers);

?>