This all seems screwed-up in various mysterious and tangled ways. Is
there somebody with emacs experience nearby who could help you? If not,
I would go back to the beginning: start with a default emacs
installation with *no* customizations at all, then add latest org-mode
and the bare minimum of customizations so that it is chosen in
preference to the org-mode that comes with emacs. Then test it carefully
and thoroughly before you try adding other customizations and org-mime.
Add things one at a time and keep testing.