Sorry, but it's daily. There may be exceptions of course but I don't
think that a feature that tells a user to please wait 6 days before
resending would be very popular. On the other hand, telling people to
wait until tomorrow should be acceptable. One must also consider the "bad
surprise" factor. "If I had known, I would never have posted so much!" If
you're cut off for a few hours, it's no big deal. If you're cut off for a
week there is a guaranteed flame.
Eric