From: test
Subject: test HTML related only
To: test2
Date: Sat, 27 Feb 2016 17:11:45 +0100
MIME-Version: 1.0
Content-Type: multipart/related;
boundary="------------related"
This is a multi-part message in MIME format.
--------------related
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: 8bit
áóúäöüß
--------------related
Content-Type: image/png
Content-Transfer-Encoding: base64
Content-ID:
iVBORw0KGgoAAAANSUhEUgAAAAYAAAALCAIAAADTMGvBAAAAEUlEQVQImWPgsi5DQwxDWggA
lCEwN+YGfiYAAAAASUVORK5CYII=
--------------related--