Date: Fri, 23 Jul 2018 20:31:47 +0200
From: Foo <foo@foo.example>
Message-ID: <2018-07-23%foo@foo.example>
Newsgroups: foo.bar
Path: server.example!.POSTED!not-for-mail
Subject: Something
cancel-LOCK: (Comment with quoted-pair: \(, (Not scheme sha1:))
 sha256:RrKLp7YCQc9T8HmgSbxwIDlnCDWsgy1awqtiDuhedRo=(sha1:abc)

Content
