From: [email protected]
To: [email protected]
Content-Type: multipart/digest; boundary=XYZ
--XYZ
Content-Type: text/plain
This is a text plain part that is counter to recommended practice in
RFC 2046, $5.1.5, but is not illegal
--XYZ
From: [email protected]
To: [email protected]
A submessage
--XYZ--