[hk__2]

And what about real e-mail, e.g. text-based? An e-mail is not a webpage, for me it’s nonsense to put HTML in it.

[biot]

If you receive a book from Amazon via snail mail, do you expect the entire book to be in Courier 10pt with no use of images, color, or other fonts, even for the cover? Do you expect ASCII illustrations in the book? Why would you expect something different for email then?

[eblade]

You could set 2 versions: text and html. Email clients that do not support html will fallback to displaying text.