I challenge you to name a single mail client which doesn't use graphics hardware acceleration in some form.
Even an old fashioned DOS computers console display modes are graphics acceleration - that's why it doesn't have to draw the fonts pixel by pixel - the graphics hardware gets them out of a ROM in real-time.
Even an old fashioned DOS computers console display modes are graphics acceleration - that's why it doesn't have to draw the fonts pixel by pixel - the graphics hardware gets them out of a ROM in real-time.