The original message was received at Wed, 16 Nov 2011 21:07:32 +0100 from static.99.74.4.46.clients.your-server.de [46.4.74.99] ----- The following addresses had permanent fatal errors ----- (reason: 550 Unrouteable address) (reason: 550 Unrouteable address) (reason: 550 Unrouteable address) (reason: 550 Unrouteable address) ----- Transcript of session follows ----- ... while talking to mx.gn.mail.iss.as9143.net.: >>> DATA <<< 550 Unrouteable address 550 5.1.1 ... User unknown <<< 550 Unrouteable address 550 5.1.1 ... User unknown <<< 550 Unrouteable address 550 5.1.1 ... User unknown <<< 550 Unrouteable address 550 5.1.1 ... User unknown