All that preferences does is turn email notices on or off, it doesn't offer the option to group emails into one daily digest vs dozens, even hundreds of individual emails per day. I did find a posting in Forum Help and Support that says that this is not possible to do this in this forum. I suppose that I could go directly to the site instead of clicking on each email as it comes in but, I hope someday the option to get a daily digest is added like many other forums offer.
DRAGONFLY - 2011, Provan Tiger CX, on a F350, 4WD, regular cab chassis