Tomi Ollila <tomi.ollila@iki.fi> writes:

> SO, there is 2 options:
>
> 1) mm executes save part correctly but not display part
>
> 2) there is (shell) wrapper program executing zathura which cannot handle
>    arguments with spaces (there is plenty of examples of this!)
>

For what it's worth, emacs-24.4 / notmuch-0.19+48 / Debian / zsh and
mupdf as a previewer, it ". v" worked ok on the examples I tried with
spaces in the file name of a pdf attachment.