It's neither import nor difficult to fix i think but with HTML mail (not tested with plain Text) the email is parsed like this :
> PROPERTIES
> ID: 5
> Status:
> Related PHID: PHID-TASK-random1
> Author PHID: PHID-USER-random2
> Message ID Hash:
>
> MESSAGE
> OK
>
> HEADERS
> %%%to: T13+public+random@a.a.info%%%
> from: Me <its.me@mario>
> %%%subject: Re: [Maniphest] [Commented On] T13: Test Inbound :)%%%
>
> BODIES
> Body "text"
> It wasn't working, isn it ?
>
> 2015-05-14 19:34 GMT+02:00 Me <its.me@mario>
:
>
> Body "html"
> <html><body><div dir="ltr">It wasn't working, isn it ?</div><div class="gmail_extra"><br><br></div></body </html>
>
> ATTACHMENTS
> No attachments.
And thus the task comment created contains :
> Does it works now ?
> 2015-05-14 19:34 GMT+02:00 Me <its.me@mario>
The proposed fix is to improve the parser so it can flush the second line.
Do you guys thinks its hard to do ? Worth spending time on it ?