From: MAILER-DAEMON@emkei.cz
Subject: Undelivered Mail Returned to Sender
Date: 2017年5月29日 19:27:47:JST
To:

This is the mail system at host emkei.cz.
I'm sorry to have to inform you that your message could not
be delivered to one or more recipients. It's attached below.
For further assistance, please send mail to postmaster.
If you do so, please include this problem report. You can
delete your own text from the attached returned message.
The mail system
<takumaigeta@docomo.ne.jp>: host mfsmax.docomo.ne.jp[203.138.181.112] said: 550
Unknown user takumaigeta@docomo.ne.jp (in reply to RCPT TO command)
Reporting-MTA: dns; emkei.cz
X-Postfix-Queue-ID: 6AA636C6EC
X-Postfix-Sender: rfc822;
Arrival-Date: Mon, 29 May 2017 12:27:41 +0200 (CEST)
Final-Recipient: rfc822; takumaigeta@docomo.ne.jp
Action: failed
Status: 5.0.0
Remote-MTA: dns; mfsmax.docomo.ne.jp
Diagnostic-Code: smtp; 550 Unknown user takumaigeta@docomo.ne.jp

From: "細野晴臣" <ozzy6669@alto.ocn.ne.jp>
Date: 2017年5月29日 19:27:41:JST
To: takumaigeta@docomo.ne.jp
Subject: いつも見てるぞ
Reply-To:

いつも見てるぞ 👀
Rock54: Caution(BBR-MD5:ae2afb6cd11f3e92f5cd12f037b4c3ac)