Subject: Re: bug#21331: 24.5; LibreOffice documents have less support than Microsoft Office docs (in Gnus?)

From: Glenn Morris <[email-masked]>
Date: Mon, 24 Aug 2015 13:26:07 -0400

I guess this is related to mailcap.
Examine your /etc/mailcap file and the value of Emacs's mailcap-mime-data.

If wildcards are involved, see
https://lists.gnu.org/archive/html/info-gnus-english/2012-01/msg00027.html

(which crosses months so is easier to read on
https://groups.google.com/forum/#!topic/gnu.emacs.gnus/T-0xfP3fxjY  )