xtend_supportform/php/sendEmail.php

<?php
//declare(strict_types=1);

# Autoload
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\SMTP;
use PHPMailer\PHPMailer\Exception;

use Skrepr\TeamsConnector\Card;
use Skrepr\TeamsConnector\CardInterface;
use Skrepr\TeamsConnector\Client;

require __DIR__ . '/../vendor/autoload.php';

function url(){
  return sprintf(
    "%s://%s",
    isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off' ? 'https' : 'http',
    $_SERVER['SERVER_NAME']
  );
}


if($_POST) {
   $name = trim(stripslashes($_POST['name']));
   $email = trim(stripslashes($_POST['email']));
   $subject = trim(stripslashes($_POST['subject']));
   $computer = strtoupper(trim(stripslashes($_POST['computer'])));
   $phone = trim(stripslashes($_POST['phone']));
   $location = trim(stripslashes($_POST['location']));
   // $file = trim(stripslashes($_POST['datei']));
   $contact_message = trim(stripslashes($_POST['message']));
	if ($subject == '') { $subject = "Supportanfrage"; }

   // Set Message
   $message  = "<h2>Supportanfrage:</h2><br/>";
   $message .= "<b>Vor- / Nachname:</b> " . $name . "<br />";
	$message .= "<b>Email:</b> " . $email . "<br />";
   $message .= "<b>Telefon:</b> " . $phone . "<br />";
   $message .= "<b>Standort:</b> " . $location . "<br />";
   $message .= "<b>Computer:</b> " . $computer . "<br />";
   $message .= "<b>Betreff:</b> " . $subject . "<br />";
   $message .= "<br/><b>Nachricht:</b><br />";
   $message .= "<hr>";
   // $message .= "<a src='".$file."'></a>";
   // $message .= "<hr>";
   $message .= nl2br($contact_message);
   $message .= "<hr>";
   $message .= "<br/><br/><i>Diese Nachricht kam über das Support Formular</i><br />";

   // Daten lokal ablegen:
   $filename = date("YmdHis") . "_" . $computer . '.json';
   file_put_contents("../auftraege/".$filename, json_encode($message, JSON_UNESCAPED_UNICODE), FILE_APPEND | LOCK_EX);

   include __DIR__."/addticket.php";
   if ( $ticket->statuscode == 201 ) {
      # Anlage per API erfolgreich!
   }
   else {
      # Send eMail
      try {
         // Versuch, eine neue Instanz der Klasse PHPMailer zu erstellen
         $mail = new PHPMailer (true);
         //$mail->SMTPDebug = SMTP::DEBUG_SERVER;
         $mail->isSMTP();
         $mail->Host = "postfix";
         $mail->Port = "25";
         $mail->SMTPAuth = false;
         $mail->CharSet = 'UTF-8';
         $mail->Encoding = 'base64';
         if ($computer==="TEST") {
            $mail->setFrom('vadmin@xtend.de', 'Vadmin Xtend');
         } else {
            $mail->setFrom('dialog-it@xtend.de', 'dialog-it Xtend');
         }
         $mail->addAddress('rmm@vision4it.de', 'Empfänger');
         //$mail->addAddress('as@vision4it.de', 'Empfänger');
         $mail->isHTML(true);
         $mail->Subject = $subject;
         $mail->Body = $message;
         $mail->send();
         echo "OK";
      } catch (Exception $e) {
         echo "<h2>Fehler beim Senden der eMail...</h2>";
      }
   }
   
   # Send to MS Teams Channel:
   try {
      if ($computer==="TEST") {
         $endPoint = 'https://vision4itmanufaktur.webhook.office.com/webhookb2/6015fd18-7016-4c5c-9a8b-322f544e23a1@b21d8bf4-1752-4aee-8c45-fdfeea4f5fc2/IncomingWebhook/715dcdf468624502943c33b76da814bc/c17f1d0d-51e3-4149-b1e4-7caa4a45867f';
      } else {
         $endPoint = 'https://xtend975.webhook.office.com/webhookb2/17865e5c-cdd2-48e4-bf53-4ced058490cf@9a94220a-3366-479f-ad5f-2157f19d9307/IncomingWebhook/6f60fe6837ff47739821154863f8a9a3/da7b9b09-3ffa-4280-bd0c-ae79e01f813f';
      }
      $httpClient = new \GuzzleHttp\Client();
      $teamsClient = new Client($endPoint, $httpClient);

      $card = (new Card('Supportanfrage'))
         ->setText($message)
         ->setThemeColor(CardInterface::STATUS_DEFAULT)
         ->setTitle('Problem: '.$subject);
      $teamsClient->send($card);
   } catch (Exception $e) {
      echo "<h2>Fehler beim Senden an MS Teams Channel...</h2>";
   }

}

?>