How do I see the text/html version of an email?

[ckeader]

José María Mateos writes:
> On Sun, Apr 23, 2023 at 02:56:35PM +0000, Alan Mackenzie wrote:
> >Some considerate organisation has been sending me MIME mails with 
> >content in a text/html section and a wholly blank text/plain version.  
> >What I see in mutt is the blank text/plain.  Who on Earth thought a 
> >blank text/plain section was somehow a good idea?
> 
> I've seen a worse version of this: the text version and the html version 
> are completely different.

I can better that, regularly spotted in the corporate environment: the
text/plain part is also in html.