If that is true, it is only true because email providers are making a choice on behalf of consumers, namely, the user writes plain-text emails (at, e.g., gmail.com) then the provider converts it to HTML.
If that is true, it is only true because email providers are making a choice on behalf of consumers, namely, the user writes plain-text emails (at, e.g., gmail.com) then the provider converts it to HTML.