HTML messages can be viewed in VM using the Emacs/W3M package. Here are the steps to get it working. (These instructions are for VM versions 8.1 and up.)
- Check to ensure that you have W3M installed. Most Linux distributions, the Cygwin distribution, and MacPorts? for Mac OS X have it pre-packaged. Alternatively, you can install the latest version yourself. See the w3m page for help.
- Install Emacs/W3M package, which is the Emacs interface to W3M. See the emacs-w3m page for help.
- In order for Emacs/W3M to work with the most recent GNU Emacs versions, you need to install the development version of Emacs/W3M from CVS.
- It is a good idea to recompile VM with support for W3M included. In the VM directory, run ./configure with the --with-other-dirs option including the directory /absolute/path/to/emacs-w3m. (You can put multiple directories in this option separated by “;”.) Then run
- In your .emacs file, add the lines:
(add-to-list 'load-path "/absolute/path/to/emacs-w3m")
- Remove any existing settings for vm-mime-text/html-handler in your .emacs and .vm files.
- Ensure that text/html is covered by vm-mime-internal-content-types and not covered by vm-mime-internal-content-type-exceptions.
- Restart Emacs and VM, and go to a message that has HTML content. If it displays HTML content formatted nicely, you have it working. Otherwise, check the values of these variables inside VM:
- vm-mime-text/html-handler (should be ‘emacs-w3m after VM loads the library)
- vm-mime-internal-content-types (should include text or text/html)
- vm-mime-internal-content-type-exceptions (should not have text or text/html)
Using external browsers
Normally, W3M opens URL’s in the html pages internally. To send them to an external web browser registered in VM, use:
(set (make-local-variable 'w3m-goto-article-function)
Customize the variable vm-url-browser as appropriate to your needs.