We are aware of the issue with the badge emails resending to everyone, we apologise for the inconvenience - learn more here.
When sending a file through Dropbox Transfer, you get notified everytime a file will expire within 2 days. When you send all of your work to your clients through Dropbox Transfer, you get quite a lot...
I am also requesting that DropBox create a feature that allows us to turn on an off the option for notifications to show up as red numbers in the DropBox icon at the top of the screen. I need to see if DropBox is syncing and the red numbers obscure it. You can see the sync mini icon at the same time as the red number is showing.
In addition, create a feature to allow us to turn on and off the option to receive email notifications for every action we take in DropBox.