Hi Jun Ha Song,
People attach images all the time.  I just answered a message with an attached image.  In the archive, the image is not displayed in the message, but you can still get to it by clicking links.  Here is the one I just answered (there is a link to a png):

<http://plato.cgl.ucsf.edu/pipermail/chimera-users/2017-July/013638.html>

Best,
Elaine
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Elaine C. Meng, Ph.D.
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Jul 7, 2017, at 8:33 AM, Jun Song <junhasong@berkeley.edu> wrote:
>
> Hello,
>
> I have been looking at the archived discussions, and I have never seen a single discussion that had any images.
>
> Is it just archived transaction that is lacking images, or is it not possible to attach images to this email?
>
> Best,
> Jun Ha Song.