Hi there! I don't know about the daily email, but I used to receive a weekly email, on Monday I think, with an article on some aspect or other of quilting. It was always interesting.
This stopped when QB did some major changes in January.
However, since you got your Digest until 3-4 weeks ago, I guess it's not the same situation.
There's a "Help" forum: you might want to ask there. I've noticed that Patrice replies to queries very promptly.