> Reporting-MTA: dns;blu139-omc3-s13.blu139.hotmail.com
> Received-From-MTA: dns;BLU132-W29
> Arrival-Date: Mon, 21 Jan 2008 08:05:37 -0800
> Final-Recipient: rfc822;hanjuku@csc.jp
> Action: failed
> Status: 5.1.1
> Diagnostic-Code: smtp;550 5.1.1 <hanjuku@csc.jp>... User unknown
> つまりどういう事よ(`Д´)

つまりUser unknownって事だろ(;´Д`)気づけ

参考：2008/01/22(火)01時06分47秒