Well after some tweaking with the content not showing at all I finally solved that problem. But when I send a e-mail with the Swedish letters, "Å", "Ä" and "Ö" the letters and the text folowing is not shown in the post but is shown when u look at the wp-mail.php.
I guess it is something have to do with the encoding but i don't know where I should make that edit.
Please, someone help med!! =)