Hi Eric,

Thanks a lot for this, I think I'll use it quite a bit.

This may be specific to my setup, but in case this is useful to others,
as a gnus user I had to do

(setq mail-user-agent 'message-user-agent)

Without altering this --- i.e. with mail-user-agent set to the default
value of 'sendmail-user-agent --- org-mime-org-buffer-htmlize puts the
outgoing message in mail-mode (a.o.t. message-mode). For me, that meant
that the resulting outgoing email was rendered verbatim in gmail,
whereas from message-mode it is fine. The exact contents of outgoing
emails are below.

I noticed one small bug, but perhaps it's an org-mode bug? When I use
org-mime-org-buffer-htmlize on this

,----
| *** Tasks
|     - [ ] Check Popen.returncode of python system calls
`----

I get the following, which renders as a checkbox with an X, whereas my
checkbox was empty.

,----
|