update: client ip logging when mail

WEBROOT/modules/Mail.php

@@ -14,11 +14,12 @@ function sendMail($subject, $message, $url, bool $log) {
     if ($log == true) {
         DatabaseInsert(
             "Mailing",
-            "Datum, SUBJECT, MESSAGE, URL",
+            "Datum, SUBJECT, MESSAGE, URL, CLIENT_IP",
             (new getSpecificData())->getRequestTime(),
             $subject,
             $message,
-            $url
+            $url,
+            (new getSpecificData())->getClientIP(),
         );
     }
 }