Main issue is the auto-generated header and remove the left vertical line quote mark.
Change "On 2017-01-11 15:48, NAME wrote:" to the format below.
From: From-NAME [mailto:user@domain.com]
Sent: Wednesday, 11 January 2017 14:23
To: To-NAME <user@domain.com>
Subject: Re:
It would so much easier if every email was in plain text.