If you have
w3m installed on your system, Gnus can display
HTML articles in the article buffer. There are many Gnus
add-ons for doing this, using various approaches, but there's one
(sort of) built-in method that's used by default.
For a complete overview, consult See Display Customization. This section only describes the default method.
gnus-article-html, Gnus will use the built-in method, that's based on
(setq gnus-blocked-images "ads")
This can also be a function to be evaluated. If so, it will be
called with the group name as the parameter. The default value is
gnus-block-private-groups, which will return ‘"."’ for
anything that isn't a newsgroup. This means that no external images
will be fetched as a result of reading mail, so that nobody can use
web bugs (and the like) to track whether you've read email.
Also see Misc Article for
gnus-blocked-imagesis set. These images will be stored in this directory.
gnus-html-cache-sizebytes have been used in that directory, the oldest files will be deleted. The default is 500MB.
To use this, make sure that you have
installed. If you have, then Gnus should display HTML