Reporting-MTA: dns;EXDAG07-2.EXCHANGE.INT
Received-From-MTA: dns;mx11.ispgateway.de
Arrival-Date: Tue, 23 Jun 2015 14:57:29 +0000

Final-Recipient: rfc822; 
Action: failed
Status: 5.1.1
Diagnostic-Code: smtp;550 5.1.1 RESOLVER.ADR.RecipNotFound; not found