cpython/Lib/test/test_email/data/msg_34.txt

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--