Kontaktformular will nicht

 <!-- CONTACT -->
     <section id="contact" data-stellar-background-ratio="0.5">
          <div class="container">
               <div class="row">
    <!-- How to change your own map point
            1. Go to Google Maps
            2. Click on your location point
            3. Click "Share" and choose "Embed map" tab
            4. Copy only URL and paste it within the src="" field below
    -->
                    <div class="wow fadeInUp col-md-6 col-sm-12" data-wow-delay="0.4s">
                         <div id="google-map">
                              <iframe src="https://www.google.com/maps/embed?pb=!1m18!1m12!1m3!1d8749.512149352304!2d8.825911783328033!3d49.84152280001934!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x47bd662419aa87f5%3A0x3f837774e41ef390!2sRistorante%20Sicilia!5e0!3m2!1sde!2sde!4v1696165419991!5m2!1sde!2sde" width="600" height="450" style="border:0;" allowfullscreen="" loading="lazy" referrerpolicy="no-referrer-when-downgrade"allowfullscreen></iframe>
                         </div>
                    </div>    

                    <div class="col-md-6 col-sm-12">

                         <div class="col-md-12 col-sm-12">
                              <div class="section-title wow fadeInUp" data-wow-delay="0.1s">
                                   <h2>Kontakt</h2>
                              </div>
                         </div>

                         <!-- CONTACT FORM -->
                         <form action="#" method="post" class="wow fadeInUp" id="contact-form" role="form" data-wow-delay="0.8s">

                              <!-- IF MAIL SENT SUCCESSFUL  // connect this with custom JS -->
                              <h6 class="text-success">Your message has been sent successfully.</h6>
                              
                              <!-- IF MAIL NOT SENT -->
                              <h6 class="text-danger">E-mail must be valid and message must be longer than 1 character.</h6>

                              <div class="col-md-6 col-sm-6">
                                   <input type="text" class="form-control" id="cf-name" name="name" placeholder="Name">
                              </div>

                              <div class="col-md-6 col-sm-6">
                                   <input type="email" class="form-control" id="cf-email" name="email" placeholder="Email Adresse">
                              </div>

                              <div class="col-md-12 col-sm-12">
                                   <input type="text" class="form-control" id="cf-subject" name="subject" placeholder="Betreff">

                                   <textarea class="form-control" rows="6" id="cf-message" name="message" placeholder="Ihre Nachricht"></textarea>

                                   <button type="submit" class="form-control" id="cf-submit" name="submit">Senden</button>
                              </div>
                         </form>
                    </div>

               </div>
               </div>
          </div>
     </section>          

  #contact .section-title {
    padding-bottom: 0;
  }
 #contact{
  background-color: #a79c9c;

}


  #contact .text-success,
  #contact .text-danger {
    display: none;
  }

  #contact .form-control {
    background:white;
    border: 0;
    border-bottom: 1px solid #dddddd;
    border-radius: 0;
    box-shadow: none;
    font-size: 14px;
    font-weight: normal;
    margin-bottom: 15px;
    transition: all ease-in-out 0.4s;
  }

  #contact .form-control:hover,
  #contact .form-control:focus {
    border-bottom-color: #c9c9c9;
  }

  #contact input {
    height: 55px;
  }

  #contact button#cf-submit {
    background: #ce3232;
    border-radius: 0;
    border: 0;
    color: #ffffff;
    font-weight: bold;
    height: 50px;
  }

  #contact button#cf-submit:hover {
    background: #292929;
    color: #ffffff;
  }

<?php
// Email Submit
// Note: filter_var() requires PHP >= 5.2.0
if ( isset($_POST['email']) && isset($_POST['name']) && isset($_POST['subject']) && isset($_POST['message']) && filter_var($_POST['email'], FILTER_VALIDATE_EMAIL) ) {
 
  // detect & prevent header injections
  $test = "/(content-type|bcc:|cc:|to:)/i";
  foreach ( $_POST as $key => $val ) {
    if ( preg_match( $test, $val ) ) {
      exit;
    }
  }

$headers = 'From: ' . $_POST["name"] . '<' . $_POST["email"] . '>' . "\r\n" .
    'Reply-To: ' . $_POST["email"] . "\r\n" .
    'X-Mailer: PHP/' . phpversion();

  //
  mail( "kontakt@ristorante-sicilia-reinheim.de", $_POST['subject'], $_POST['message'], $headers );
 
  //      ^
  //  Replace with your email 
}
?>

<?php
/*
THIS FILE USES PHPMAILER INSTEAD OF THE PHP MAIL() FUNCTION
AND ALSO SMTP TO SEND THE EMAILS
*/

require 'PHPMailer-master/PHPMailerAutoload.php';

/*
*  CONFIGURE EVERYTHING HERE
*/

// an email address that will be in the From field of the email.
$fromEmail = 'test@ristorante-sicilia-reinheim.de';
$fromName = 'Demo contact form';

// an email address that will receive the email with the output of the form
$sendToEmail = 'test@ristorante-sicilia-reinheim.de';
$sendToName = 'Demo contact form';

// subject of the email
$subject = 'New message from contact form';

// smtp credentials and server

$smtpHost = 'smtp.domain.com';
$smtpUsername = 'hello@domain.com';
$smtpPassword = 'PASSWORD';

// form field names and their translations.
// array variable name => Text to appear in the email
$fields = array('name' => 'Name', 'surname' => 'Surname', 'phone' => 'Phone', 'email' => 'Email', 'message' => 'Message');

// message that will be displayed when everything is OK :)
$okMessage = 'Contact form successfully submitted. Thank you, I will get back to you soon!';

// If something goes wrong, we will display this message.
$errorMessage = 'There was an error while submitting the form. Please try again later';

/*
*  LET'S DO THE SENDING
*/

// if you are not debugging and don't need error reporting, turn this off by error_reporting(0);
error_reporting(E_ALL & ~E_NOTICE);

try {
    if (count($_POST) == 0) {
        throw new \Exception('Form is empty');
    }
    
    $emailTextHtml = "<h1>You have a new message from your contact form</h1><hr>";
    $emailTextHtml .= "<table>";
    
    foreach ($_POST as $key => $value) {
        // If the field exists in the $fields array, include it in the email
        if (isset($fields[$key])) {
            $emailTextHtml .= "<tr><th>$fields[$key]</th><td>$value</td></tr>";
        }
    }
    $emailTextHtml .= "</table><hr>";
    $emailTextHtml .= "<p>Have a nice day,<br>Best,<br>Ondrej</p>";
    
    $mail = new PHPMailer;
    
    $mail->setFrom($fromEmail, $fromName);
    $mail->addAddress($sendToEmail, $sendToName); // you can add more addresses by simply adding another line with $mail->addAddress();
    $mail->addReplyTo($from);
    
    $mail->isHTML(true);
    
    $mail->Subject = $subject;
    $mail->Body    = $emailTextHtml;
    $mail->msgHTML($emailTextHtml); // this will also create a plain-text version of the HTML email, very handy
    
    
    $mail->isSMTP();
    
    //Enable SMTP debugging
    // 0 = off (for production use)
    // 1 = client messages
    // 2 = client and server messages
    $mail->SMTPDebug = 0;
    $mail->Debugoutput = 'html';
    
    //Set the hostname of the mail server
    // use
    // $mail->Host = gethostbyname('smtp.gmail.com');
    // if your network does not support SMTP over IPv6
    $mail->Host = gethostbyname($smtpHost);
    
    //Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
    $mail->Port = 587;
    
    //Set the encryption system to use - ssl (deprecated) or tls
    $mail->SMTPSecure = 'tls';
    
    //Whether to use SMTP authentication
    $mail->SMTPAuth = true;
    
    //Username to use for SMTP authentication - use full email address for gmail
    $mail->Username = $smtpHost;
    
    //Password to use for SMTP authentication
    $mail->Password = $smtpPassword;
    
    if (!$mail->send()) {
        throw new \Exception('I could not send the email.' . $mail->ErrorInfo);
    }
    
    $responseArray = array('type' => 'success', 'message' => $okMessage);
} catch (\Exception $e) {
    // $responseArray = array('type' => 'danger', 'message' => $errorMessage);
    $responseArray = array('type' => 'danger', 'message' => $e->getMessage());
}


// if requested by AJAX request return JSON response
if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $encoded = json_encode($responseArray);
    
    header('Content-Type: application/json');
    
    echo $encoded;
}
// else just display the message
else {
    echo $responseArray['message'];
}

<?php
/*
THIS FILE USES PHPMAILER INSTEAD OF THE PHP MAIL() FUNCTION
AND ALSO SMTP TO SEND THE EMAILS
*/

require 'PHPMailer-master/PHPMailerAutoload.php';

/*
*  CONFIGURE EVERYTHING HERE
*/

// an email address that will be in the From field of the email.
$fromEmail = 'kontakt@ristorante-sicilia-reinheim.de';
$fromName = 'ristorante';

// an email address that will receive the email with the output of the form
$sendToEmail = 'kontakt@ristorante-sicilia-reinheim.de';
$sendToName = 'ristorante';

// subject of the email
$subject = 'New message from contact form';

// smtp credentials and server

$smtpHost = 'web56.alfahosting-server.de';
$smtpUsername = 'kontakt@ristorante-sicilia-reinheim.de';
$smtpPassword = 'xgeheimx';

// form field names and their translations.
// array variable name => Text to appear in the email
$fields = array('name' => 'Name', 'surname' => 'Surname', 'phone' => 'Phone', 'email' => 'Email', 'message' => 'Message');

// message that will be displayed when everything is OK :)
$okMessage = 'Contact form successfully submitted. Thank you, I will get back to you soon!';

// If something goes wrong, we will display this message.
$errorMessage = 'There was an error while submitting the form. Please try again later';

/*
*  LET'S DO THE SENDING
*/

// if you are not debugging and don't need error reporting, turn this off by error_reporting(0);
error_reporting(E_ALL & ~E_NOTICE);

try {
    if (count($_POST) == 0) {
        throw new \Exception('Form is empty');
    }
    
    $emailTextHtml = "<h1>You have a new message from your contact form</h1><hr>";
    $emailTextHtml .= "<table>";
    
    foreach ($_POST as $key => $value) {
        // If the field exists in the $fields array, include it in the email
        if (isset($fields[$key])) {
            $emailTextHtml .= "<tr><th>$fields[$key]</th><td>$value</td></tr>";
        }
    }
    $emailTextHtml .= "</table><hr>";
    $emailTextHtml .= "<p>Have a nice day,<br>Best,<br>Ondrej</p>";
    
    $mail = new PHPMailer;
    
    $mail->setFrom($fromEmail, $fromName);
    $mail->addAddress($sendToEmail, $sendToName); // you can add more addresses by simply adding another line with $mail->addAddress();
    $mail->addReplyTo($from);
    
    $mail->isHTML(true);
    
    $mail->Subject = $subject;
    $mail->Body    = $emailTextHtml;
    $mail->msgHTML($emailTextHtml); // this will also create a plain-text version of the HTML email, very handy
    
    
    $mail->isSMTP();
    
    //Enable SMTP debugging
    // 0 = off (for production use)
    // 1 = client messages
    // 2 = client and server messages
    $mail->SMTPDebug = 0;
    $mail->Debugoutput = 'html';
    
    //Set the hostname of the mail server
    // use
    // $mail->Host = gethostbyname('smtp.gmail.com');
    // if your network does not support SMTP over IPv6
    $mail->Host = gethostbyname($smtpHost);
    
    //Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
    $mail->Port = 465;
    
    //Set the encryption system to use - ssl (deprecated) or tls
    $mail->SMTPSecure = 'ssl';
    
    //Whether to use SMTP authentication
    $mail->SMTPAuth = true;
    
    //Username to use for SMTP authentication - use full email address for gmail
    $mail->Username = kontakt@ristorant-sicilia-reinheim.de;
    
    //Password to use for SMTP authentication
    $mail->Password = xgeheimx;
    
    if (!$mail->send()) {
        throw new \Exception('I could not send the email.' . $mail->ErrorInfo);
    }
    
    $responseArray = array('type' => 'success', 'message' => $okMessage);
} catch (\Exception $e) {
    // $responseArray = array('type' => 'danger', 'message' => $errorMessage);
    $responseArray = array('type' => 'danger', 'message' => $e->getMessage());
}


// if requested by AJAX request return JSON response
if (!empty($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') {
    $encoded = json_encode($responseArray);
    
    header('Content-Type: application/json');
    
    echo $encoded;
}
// else just display the message
else {
    echo $responseArray['message'];
}

E-Mail-Informationen
Angaben zu SMTP:
Ports:
465 (mit SSL/TLS verschlüsselt) oder 25 (ohne Verschlüsselung)
Angaben zu POP3:
Ports:
995 (mit SSL/TLS verschlüsselt) oder 110 (ohne Verschlüsselung)
Posteingangsserver:
web56.alfahosting-server.de
Postausgangsserver:
web56.alfahosting-server.de
Angaben zu IMAP:
Ports:
993 (mit SSL/TLS verschlüsselt) oder 143 (ohne Verschlüsselung)
Posteingangsserver:
web56.alfahosting-server.de
Postausgangsserver:
web56.alfahosting-server.de