Kmail2 doesn't show the full content of some HTML mails. It stops after some paragraphs (see attached screenshot). I've added the affected mails too. At the moment my workaround is to open the mail using konqueror. Reproducible: Always
Created attachment 70422 [details] Screenshot of preview window
Created attachment 70423 [details] Affected mail
Perhaps you can add screenshot of html that you see in konqueror :)
Created attachment 70472 [details] Screenshot Konqueror Screenshot of the same mail opened in Konqueror.
I confirm it.
Fixed in 4.9