diff --git a/extension/Source/core/helper/OnArray.php b/extension/Source/core/helper/OnArray.php
index 3181b3cadff6181193ae8e9592767971102237cf..32076c1503181385fe5742624c3ffe81210fef3d 100644
--- a/extension/Source/core/helper/OnArray.php
+++ b/extension/Source/core/helper/OnArray.php
@@ -34,6 +34,7 @@ class OnArray {
      * @return string
      */
     public static function toString(array $dataArray, $keyValueGlue = '=', $rowGlue = '&', $encloseValue = '') {
+
         if (count($dataArray) === 0) {
             return '';
         }
diff --git a/extension/Source/core/report/SendMail.php b/extension/Source/core/report/SendMail.php
index bf86a631ce9652cf9562d38c1189432793e8f7de..10d42c9ad64c422547aab6263c7f15805459a136 100644
--- a/extension/Source/core/report/SendMail.php
+++ b/extension/Source/core/report/SendMail.php
@@ -69,10 +69,10 @@ class SendMail {
         if (!empty($redirectAllMail)) {
 
             $addBody = "All QFQ outgoing mails are caught and redirected to you." . PHP_EOL . "Original receiver(s) are ..." . PHP_EOL;
-            $addBody .= 'TO: ' . ($mailConfig[SENDMAIL_TOKEN_RECEIVER]??'') . PHP_EOL;
-            $addBody .= 'CC: ' . ($mailConfig[SENDMAIL_TOKEN_RECEIVER_CC]??'') . PHP_EOL;
-            $addBody .= 'BCC: ' . ($mailConfig[SENDMAIL_TOKEN_RECEIVER_BCC]??'') . PHP_EOL;
-            $addBody .= 'SENDER: ' . ($mailConfig[SENDMAIL_TOKEN_SENDER]??'') . PHP_EOL;
+            $addBody .= 'TO: ' . ($mailConfig[SENDMAIL_TOKEN_RECEIVER] ?? '') . PHP_EOL;
+            $addBody .= 'CC: ' . ($mailConfig[SENDMAIL_TOKEN_RECEIVER_CC] ?? '') . PHP_EOL;
+            $addBody .= 'BCC: ' . ($mailConfig[SENDMAIL_TOKEN_RECEIVER_BCC] ?? '') . PHP_EOL;
+            $addBody .= 'SENDER: ' . ($mailConfig[SENDMAIL_TOKEN_SENDER] ?? '') . PHP_EOL;
             $addBody .= PHP_EOL . "==========================================" . PHP_EOL . PHP_EOL;
 
             // Check if the given body is a HTML body.
@@ -238,13 +238,13 @@ class SendMail {
 
                 $output = Support::qfqExec($cmd, $rc);
 
-                if($rc!=0){
-                    if(!is_file($sendEmail) || !is_readable($sendEmail)){
+                if ($rc != 0) {
+                    if (!is_file($sendEmail) || !is_readable($sendEmail)) {
                         throw new UserFormException(json_encode([ERROR_MESSAGE_TO_USER => "Command 'sendEmail' not found."
                             , ERROR_MESSAGE_SUPPORT => $sendEmail]), ERROR_SENDMAIL);
                     }
 
-                    if(!is_executable($sendEmail)){
+                    if (!is_executable($sendEmail)) {
                         throw new UserFormException(json_encode([ERROR_MESSAGE_TO_USER => "Command 'sendEmail' not executable."
                             , ERROR_MESSAGE_SUPPORT => $sendEmail]), ERROR_SENDMAIL);
                     }
@@ -266,8 +266,8 @@ class SendMail {
      * Creates a new MailLog Record based on $mailArr / $header.
      *
      * @param array $mailConfig
-     *
      * @param string $attachmentsLine
+     *
      * @throws CodeException
      * @throws DbException
      * @throws UserFormException
@@ -277,12 +277,17 @@ class SendMail {
 
         $log = array();
 
+        $attachments = '';
+        if (!empty($mailConfig[SENDMAIL_TOKEN_ATTACHMENT]) && is_array($mailConfig[SENDMAIL_TOKEN_ATTACHMENT])) {
+            $attachments = OnArray::toString($mailConfig[SENDMAIL_TOKEN_ATTACHMENT]);
+        }
+
         $header = 'OoO:' . $mailConfig[SENDMAIL_TOKEN_FLAG_AUTO_SUBMIT];
         if (!empty($mailConfig[SENDMAIL_TOKEN_HEADER])) {
             $header .= PHP_EOL . 'Custom: ' . $mailConfig[SENDMAIL_TOKEN_HEADER];
         }
         if (!empty($mailConfig[SENDMAIL_TOKEN_ATTACHMENT])) {
-            $header .= PHP_EOL . 'Attachment: ' . $mailConfig[SENDMAIL_TOKEN_ATTACHMENT];
+            $header .= PHP_EOL . 'Attachment: ' . $attachments;
         }
 
         // Log