Subject: mime-modified test
Message-ID: 12345@testrun.org
Date: Sat, 07 Dec 2019 19:00:27 +0000
To: alice@example.org
From: sender@testrun.org
Content-Type: multipart/alternative; boundary="==BREAK=="


--==BREAK==
Content-Type: text/plain; charset=utf-8

this is plain

--==BREAK==
Content-Type: text/html; charset=utf-8

<html>
  <p>
    this is <b>html</b>
  </p>
</html>

--==BREAK==--
