What controls the conversion of spaces to &npsb;?

[emacsomancer]

When I send html email I seem to get all " " space characters of the original replaced by &npsb;, which messes up line-breaking in most clients.

What are the org-msg or org-mode-to-html settings which would be relevant here? I just want plain spaces in the email.

[emacsomancer]

I've 'fixed' it locally by (re)defining within the use-package :config section:

    (defun org-msg-xml-to-str (xml) ;; REDEFINE to STOP NO PARAGRAPH BREAKING!!!
      "Convert the XML tree into a HTML string."
      (cond ((and (listp xml) (equal xml '(p nil " ")))
	     "<o:p> </o:p>")  ;; was <o:p>&nbsp;</o:p>
	    ((and (listp xml) (equal xml '(p nil)))
	     "<o:p>\n</o:p>")
	    ((stringp xml)
	     (replace-regexp-in-string " " " " ;; was replace-regexp-in-string " " "&nbsp;"
				       (org-msg-xml-escape-string xml)))
	    ((eq (car xml) 'comment)
	     (format "<!--%s-->" (caddr xml)))
	    ((eq (car xml) 'style)
	     (format "<style>%s</style>" (caddr xml)))
	    ((cddr xml)
	     (format "<%s%s>%s</%s>" (symbol-name (car xml))
		     (org-msg-attrs-str (cadr xml))
		     (apply 'concat (mapcar 'org-msg-xml-to-str (cddr xml)))
		     (symbol-name (car xml))))
	    ((format "<%s%s/>" (symbol-name (car xml))
		     (org-msg-attrs-str (cadr xml))))))