The obvious way is to just copy and paste. However, the HTML has stylesheets like
.auto-style9 {
background-image: url('http://domainname.com/backgroundTall.png');
background-repeat:no-repeat;
}
That is a background image of one of the table. If I see the HTML in Firefox I can see the background image.
If I copy it to Gmail or Outlook, the background is gone.
So how can I do it? Actually, how can I send HTML email in general? How do corporations do that?