Reporting-MTA: dns;FRXPR01MB1111.DEUPRD01.PROD.OUTLOOK.DE
Received-From-MTA: dns;mx.kuv.de
Arrival-Date: Thu, 17 Dec 2020 13:25:39 +0000

Final-Recipient: rfc822;m.vosseler@kuv24-berater.de
Action: failed
Status: 5.7.133
Diagnostic-Code: smtp;550 5.7.133 RESOLVER.RST.SenderNotAuthenticatedForGroup; authentication required; Delivery restriction check failed because the sender was not authenticated when sending to this group
X-Display-Name: Manfred Vosseler