There is a standard text/enriched content type that enables only “text formatting” and not arbitrary HTML. But HTML rapidly took over email, and now I don’t kno

There is a standard text/enriched content type that enables only “text formatting” and not arbitrary HTML. But HTML rapidly took over email, and now I don’t know what clients even implement text/enriched anymore. https://www.rfc-editor.org/rfc/rfc1896 https://www.rfc-editor.org/rfc/rfc1896