To: test1@test.invalid
From: test2@test.invalid
Subject: test format flowed reply
Date: Tue, 27 Sep 2016 13:00:40 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit

first first first first first text text text text text text text text 
text text text text text text text text text text text text text text 
last last last last last last last last last last last last last last