improved logging

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

src/main/java/de/srsoftware/widerhall/data/MailingList.java

@@ -446,16 +446,17 @@ public class MailingList implements MessageHandler, ProblemListener {
 
     @Override
     public void onMessageReceived(Message message) throws MessagingException {
-        LOG.info("Message received: {}",message.getFrom());
-        String subject = message.getSubject();
+		String subject = message.getSubject();
+		Address from = message.getFrom()[0];
+        LOG.info("Message received: \"{}\" from {}",subject, from);
 
         try {
             if (subject.toLowerCase().contains("undelivered")){
+				LOG.warn("This one only goes to the mods!");
                 forward(message,moderators());
                 return;
             }
 
-            Address from = message.getFrom()[0];
             if (from instanceof InternetAddress internetAddress) {
                 var senderEmail = internetAddress.getAddress();