Contact form with ajax dont working

CMS & WordPress
1

So i’m using a theme, and the contact form dont work.

Here is the contact form:

And the code on functions.php:

add_action( 'wp_ajax_nopriv_send_message', 'send_message' );
add_action( 'wp_ajax_send_message', 'send_message' );

  function send_message()
  {
      if(isset($_POST['email'])):

          if($_POST['captcha'] != $_SESSION['rand_code'])
          {
            echo "Wrong Code!";
            die;
          }

          $name = $_POST['author'];
                $email = $_POST['email'];
          $phone = $_POST['phone'];
          $subject = $_POST['subject'];
                $message = $_POST['message'];
          $address = $_POST['target'];

                if(get_magic_quotes_gpc()) {
                        $message = stripslashes($message);
                }

          $e_subject = __('You Have Received a Message From ','framework') . $name . '.';

          if(!empty($subject))
          {
            $e_subject = $subject . ':' . $name . '.';
          }

          $e_body =   __("You have Received a message from: ", 'framework')
                .$name
                . "\
"
                ."Phone: " . $phone
                . "\
"
                .__("Their additional message is as follows.", 'framework')
                ."\\r\
\
";

          $e_content = "\\" $message \\"\\r\
\
";

          $e_reply =  __("You can contact ", 'framework')
                .$name
                . __(" via email, ", 'framework')
                .$email;

          $msg = $e_body . $e_content . $e_reply;
          if(wp_mail($address, $e_subject, $msg, "From: $email\\r\
Reply-To: $email\\r\
Return-Path: $email\\r\
","-f $address"))
          {
            _e("Message Sent Successfully!", 'framework');
          }
          else
          {
            _e("Server Error: WordPress mail method failed!", 'framework');
          }
      else:
          _e("Invalid Request !", 'framework');
      endif;

      die;

  }

When i submit the form, it says: “Message sent sucessefuly!”

But then i dont receive any email. I already tried different email, and nothing.

Can someone help me?