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<[email protected]>: host mx00.kundenserver.de[212.227.15.134] refused to talk
    to me: 554-kundenserver.de (mxeue002) Nemesis ESMTP Service not available
    554-No SMTP service 554 invalid DNS PTR resource record, IP=5.230.214.109
Reporting-MTA: dns; fletzner.de
X-Postfix-Queue-ID: 667DB3E1017
X-Postfix-Sender: rfc822; [email protected]
Arrival-Date: Sat,  1 Nov 2014 09:23:08 +0100 (CET)

Final-Recipient: rfc822; [email protected]
Original-Recipient: rfc822;[email protected]
Action: failed
Status: 4.0.0
Remote-MTA: dns; mx00.kundenserver.de
Diagnostic-Code: smtp; 554-kundenserver.de (mxeue002) Nemesis ESMTP Service not
    available 554-No SMTP service 554 invalid DNS PTR resource record,
    IP=5.230.214.109