Hello I am starting to use org-preview-latex-fragment also in non org buffers, including message buffers.
What would be extremely helpful is to actually send the images generates in the message buffers as images. Preview-latex provides such a functionality preview-copy-region-as-mml, from a LaTeX buffer. Of course the 2 preview functions org-preview and the latex-preview function work differently. I had a look preview-copy-region-as-mml and it is not clear to me how to make if work for png generated by org-preview-latex-fragment in a message buffer. Maybe some of the maintainers of org mode or auctex are interested in having a look? Uwe Brauer