I'd say text/orgmode (text/x-orgmode if getting into IANA is not an
option). text/org feels too generic, as not everyone is familiar with Org.

On Wed, Jun 21, 2017, 21:36 John Kitchin <jkitchin@andrew.cmu.edu> wrote:

> hm. I tried to use this to update the mime-types on Github
> (https://github.com/jshttp/mime-db/pull/82#pullrequestreview-45516223),
> but the email isn't primary enough for them.
>
> It seems like if we had something on orgmode.org specifying a mimetype
> it might work, although better would be to get it in IANA.
>
> Could we come to an agreement on "text/x-org" or "text/x-orgmode" and
> document that on orgmode.org?
>
> Mario Martelli writes:
>
> >  Is there an official mimetype for orgmode files?
> >
> >  In `mailcap-mime-extensions' there is a value `(".org" . "text/x-org")'.
> >
> >  Maybe that is for Org-Mode.
> >
> > It is :)
> > https://lists.gnu.org/archive/html/emacs-orgmode/2011-01/msg00977.html
> >
> > If official would mean registered with IANA, then it’s not.
> > https://www.iana.org/assignments/media-types/media-types.xhtml
> >
> > Link regards
> > Mario
> > —
>
>
> --
> Professor John Kitchin
> Doherty Hall A207F
> Department of Chemical Engineering
> Carnegie Mellon University
> Pittsburgh, PA 15213
> 412-268-7803
> @johnkitchin
> http://kitchingroup.cheme.cmu.edu
>
>