Merhabalar,

aşağıda vereceğim kodda bir iletişim formu mevcut ancak mesajı gönder butonuna tıklayınca sadece lütfen bekleyin... yazıyor ve mesajı gönderiyor ancak mesajın gönderildiğine dair bir şey ekleyemedim bir türlü ve mesajı gönderdikten sonra da formu boşaltması gerekiyor ama olmuyor nedense...
Bu konuda yardımcı olabilecek var ise sevinirim, teşekkürler.

<?php
require_once 'assets/inc/config.php';
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'PHPMailer/src/Exception.php'; //Exception.php dosya yolu
require 'PHPMailer/src/PHPMailer.php'; //PHPMailer.php dosya yolu
require 'PHPMailer/src/SMTP.php'; //SMTP.php dosya yolu

$mail = new PHPMailer(true);
if ($_POST){
try {
    //Server settings
    $mail->CharSet = 'UTF-8';
    $mail->SMTPDebug = 0; // 0: debug kapalı, 1: debug açık
    $mail->isSMTP();
    $mail->Host = SUNUCU; // SMTP sunucu adı
    $mail->SMTPAuth = true; // SMTP Doğrulama
    $mail->Username = EPOSTA; // SMTP kullanıcı adı
    $mail->Password = PASSWORD; // SMTP kullanıcısının şifresi
    $mail->SMTPSecure = 'tls'; // Şifreleme
    $mail->Port = PORT; // SMTP Port

    // Gönderen bilgilerini ayarla
    $mail->setFrom(EPOSTA, 'Geridönüşüm');
    $mail->addAddress(EPOSTA, 'Info');
    
    // Yanıt adresini formdan al
    if(isset($_POST['form_email']) && isset($_POST['form_name'])) {
        $mail->addReplyTo($_POST['form_email'], $_POST['form_name']);
    } else {
        throw new Exception('Form verileri eksik!');
    }

    $mail->isHTML(true);
    $mail->Subject = 'Yeni İletişim Mesajı';
    $mail->Body    = '<p>Gönderen: ' . htmlspecialchars($_POST['form_name']) . '</p>' .
                      '<p>Email: ' . htmlspecialchars($_POST['form_email']) . '</p>' .
                      '<p>Telefon: ' . htmlspecialchars($_POST['form_phone']) . '</p>' .
                      '<p>Konu: ' . htmlspecialchars($_POST['form_subject']) . '</p>' .
                      '<p>Mesaj: ' . nl2br(htmlspecialchars($_POST['form_message'])) . '</p>';

    //Üçüncü taraf SMTP sunucusu ile barındırma sunucusu entegrasyonu için gerekebilir
    $mail->SMTPOptions = array(
        'ssl' => array(
            'verify_peer' => false,
            'verify_peer_name' => false,
            'allow_self_signed' => true
        )
    );

    $mail->send();
    echo "Mesajınız başarıyla gönderildi. Teşekkür ederiz!";
} catch (Exception $e) {
    echo 'Mesajınız iletilemedi. Hata: ', htmlspecialchars($e->getMessage());
}

}
include "header.php"; ?>
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>İletişim</title>
    <link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css" />
    <style>
        #map { height: 400px; width: 100%; }
    </style>
</head>

<body>
    <!--Start breadcrumb area paroller-->
    <section class="breadcrumb-area">
        <div class="breadcrumb-area-bg" style="background-image: url(assets/images/breadcrumb/breadcrumb-1.jpg);"></div>
        <div class="container">
            <div class="row">
                <div class="col-xl-12">
                    <div class="inner-content">
                        <div class="breadcrumb-menu" data-aos="fade-down" data-aos-easing="linear" data-aos-duration="1500">
                            <ul>
                                <li><a href="index.php">Ana Sayfa</a></li>
                                <li class="active">İletişim</li>
                            </ul>
                        </div>
                        <div class="title" data-aos="fade-up" data-aos-easing="linear" data-aos-duration="1500">
                            <h2>İletişim</h2>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </section>
    <!--End breadcrumb area-->

    <!--Start Google Map Style2 Area-->
<section class="google-map-area">
    <div class="auto-container">
        <div class="contact-page-map-outer">
            <!-- Google Maps iframe -->
            <iframe
                src="link"
                width="100%" height="450" style="border:0;" allowfullscreen="" loading="lazy" referrerpolicy="no-referrer-when-downgrade">
                    
                    </div>
            </iframe>
            <!-- Contact Information Box -->
        </div>
    </div>
</section>
<!--End Google Map Style2 Area-->

    <!--End Google Map Style2 Area-->

    <!--Start Main Contact Form Area-->
    <section class="main-contact-form-area">
        <div class="container">
            <div class="row">
                <div class="col-xl-6 col-lg-6">
                    <div class="contact-info-box">
                        <div class="sec-title">
                            <div class="sub-title">
                                <h3>Dokun ve bizimle iletişime geç!</h3>
                            </div>
                            <h2>İletişim Seçeneklerimiz</h2>
                        </div>
                        <div class="contact-info-list">
                            <ul>
                                <li>
                                    <div class="icon">
                                        <span class="icon-telephone"></span>
                                    </div>
                                    <div class="text">
                                        <p>Telefon ile iletişime geç.</p>
                                        <h4><a href="tel:+905380320786">+(90) 538 032 07 86</a></h4>
                                    </div>
                                </li>
                                <li>
                                    <div class="icon">
                                        <span class="icon-email-1"></span>
                                    </div>
                                    <div class="text">
                                        <p>E-posta Gönder</p>
                                        <h4><a href="mailto:info@geridonusum.com">info@geridonusum.com</a></h4>
                                    </div>
                                </li>
                                <li>
                                    <div class="icon">
                                        <span class="icon-pin-1"></span>
                                    </div>
                                    <div class="text">
                                        <p>Konumumuzu ziyaret edin</p>
                                        <h4>Adres</h4>
                                    </div>
                                </li>
                            </ul>
                        </div>
                    </div>
                </div>

                <div class="col-xl-6 col-lg-6">
                    <div class="contact-form contact-form--style2">
                        <div class="sec-title">
                            <div class="sub-title">
                                <h3>Mesaj Gönder</h3>
                            </div>
                            <h2>Bize Bir Mesaj Gönder</h2>
                        </div>

                        <form id="contact-form" name="contact_form" class="default-form2" method="post">
    <div class="row">
        <div class="col-xl-12">
            <div class="form-group">
                <div class="input-box">
                    <input type="text" name="form_name" id="formName" placeholder="İsim Soyisim" required="">
                </div>
            </div>
        </div>
        <div class="col-xl-12">
            <div class="form-group">
                <div class="input-box">
                    <input type="email" name="form_email" id="formEmail" placeholder="Eposta Adresi" required="">
                </div>
            </div>
        </div>
        <div class="col-xl-12">
            <div class="form-group">
                <div class="input-box">
                    <input type="text" name="form_phone" id="formPhone" placeholder="Telefon Numarası">
                </div>
            </div>
        </div>
        <div class="col-xl-12">
            <div class="form-group">
                <div class="input-box">
                    <input type="text" name="form_subject" id="formSubject" placeholder="Konu">
                </div>
            </div>
        </div>
        <div class="col-xl-12">
            <div class="form-group">
                <div class="input-box">
                    <textarea name="form_message" id="formMessage" placeholder="Mesajınız" required=""></textarea>
                </div>
            </div>
        </div>
        <div class="col-xl-12">
            <div class="button-box">
                <input id="form_botcheck" name="form_botcheck" class="form-control" type="hidden" value="">
                <button class="btn-one" type="submit" data-loading-text="Lütfen Bekleyin...">
                    <span class="txt">Mesajı Gönder<i class="icon-refresh arrow"></i></span>
                </button>
            </div>
        </div>
    </div>
</form>

                    </div>
                </div>
            </div>
        </div>
    </section>
    <!--End Main Contact Form Area-->

    <button class="scroll-top scroll-to-target" data-target="html">
        <span class="flaticon-up-arrow"></span>
    </button>

    <!-- search-popup -->
    <div id="search-popup" class="search-popup">
        <div class="close-search"><i class="icon-close"></i></div>
        <div class="popup-inner">
            <div class="overlay-layer"></div>
            <div class="search-form">
                <form method="post" action="index.php">
                    <div class="form-group">
                        <fieldset>
                            <input type="search" class="form-control" name="search-input" placeholder="Sitede Ara" required>
                            <input type="submit" value="Ara & Bul!" class="theme-btn style-four">
                        </fieldset>
                    </div>
                </form>
                <h3>Geçmişte Arananlar</h3>
                <ul class="recent-searches">
                    <li><a href="index.php">atık</a></li>
                    <li><a href="index.php">konteynır</a></li>
                    <li><a href="index.php">geri dönüşüm</a></li>
                    <li><a href="index.php">büyük çöp</a></li>
                    <li><a href="index.php">çöp</a></li>
                </ul>
            </div>
        </div>
    </div>
    <!-- search-popup end -->

    <script src="assets/js/jquery.js"></script>
    <script src="assets/js/aos.js"></script>
    <script src="assets/js/appear.js"></script>
    <script src="assets/js/bootstrap.bundle.min.js"></script>
    <script src="assets/js/isotope.js"></script>
    <script src="assets/js/jquery.bootstrap-touchspin.js"></script>
    <script src="assets/js/jquery.countTo.js"></script>
    <script src="assets/js/jquery.easing.min.js"></script>
    <script src="assets/js/jquery.event.move.js"></script>
    <script src="assets/js/jquery.fancybox.js"></script>
    <script src="assets/js/jquery.magnific-popup.min.js"></script>
    <script src="assets/js/jquery.nice-select.min.js"></script>
    <script src="assets/js/jquery.paroller.min.js"></script>
    <script src="assets/js/jquery-sidebar-content.js"></script>
    <script src="assets/js/knob.js"></script>
    <script src="assets/js/map-script.js"></script>
    <script src="assets/js/owl.js"></script>
    <script src="assets/js/pagenav.js"></script>
    <script src="assets/js/scrollbar.js"></script>
    <script src="assets/js/swiper.min.js"></script>
    <script src="assets/js/tilt.jquery.js"></script>
    <script src="assets/js/TweenMax.min.js"></script>
    <script src="assets/js/validation.js"></script>
    <script src="assets/js/wow.js"></script>
    <script src="assets/js/jquery-1color-switcher.min.js"></script>
    <!-- thm custom script -->
    <script src="assets/js/custom.js"></script>
</body>
</html>
<?php include "footer.php"; ?>