From: foo
Subject: bar
To: baz
MIME-Version: 1.0
Content-Type: multipart/report; report-type=delivery-status;
boundary="D1690A7AC1.996856090/mail.example.com"
Message-Id: <[email protected]>
This is a MIME-encapsulated message.
--D1690A7AC1.996856090/mail.example.com
Content-Type: text/plain
Yadda yadda yadda
--D1690A7AC1.996856090/mail.example.com
Yadda yadda yadda
--D1690A7AC1.996856090/mail.example.com
Content-Type: message/rfc822
From: [email protected]
Yadda yadda yadda
--D1690A7AC1.996856090/mail.example.com--