Emails saved as HTML

It seems that every ticket that is opened on my new installation of
3.8.6 is being saved as HTML code. I can view the body of the message
from the web interface, but if the email is to large it saves it as an
attachment and when I open that attachment it is unreadable due to the
HTML code. Is there a setting that I am missing telling RT to save as
plain text or something like that?

Thanks,

Peter Barton