Is there some limit to the length of a email.

Is there some limit to the length of a email.

Hi,

I have a email that consist of many replies back and forth (I know its bad form to have more than two embedded in the email but their support ticket kept adding the old stuff back on) and after a while the email will no longer display. I can only view it by going to the 'More Options" and clicking "Show Original". Is there some limit on the length that can be displayed in the preview or pop-up. It would be nice if it rendered it with a scroll if there is a limit or clipped it to contain only the most recent portion.

Thanks