diff --git a/mailstream/mailstream.php b/mailstream/mailstream.php
index ae57c4dd..9910a63d 100644
--- a/mailstream/mailstream.php
+++ b/mailstream/mailstream.php
@@ -378,7 +378,7 @@ function mailstream_send(string $message_id, array $item, array $user): bool
 	if (!$address) {
 		$address = $user['email'];
 	}
-	$mail = new PHPmailer();
+	$mail = new PHPMailer();
 	try {
 		$mail->XMailer = 'Friendica Mailstream Addon';
 		$mail->SetFrom($frommail, mailstream_sender($item));
diff --git a/mailstream/phpmailer/class.phpmailer.php b/mailstream/phpmailer/class.phpmailer.php
index ab7fe030..a47b13f7 100644
--- a/mailstream/phpmailer/class.phpmailer.php
+++ b/mailstream/phpmailer/class.phpmailer.php
@@ -1519,6 +1519,7 @@ class PHPMailer
     public function getSMTPInstance()
     {
         if (!is_object($this->smtp)) {
+            /** @phpstan-ignore-next-line file class.smtp.php does not exist */
             $this->smtp = new SMTP;
         }
         return $this->smtp;
@@ -2705,7 +2706,7 @@ class PHPMailer
             $file_buffer = $this->encodeString($file_buffer, $encoding);
             if ($magic_quotes) {
                 if (version_compare(PHP_VERSION, '5.3.0', '<')) {
-                    set_magic_quotes_runtime($magic_quotes);
+                    //set_magic_quotes_runtime($magic_quotes);
                 } else {
                     ini_set('magic_quotes_runtime', $magic_quotes);
                 }