We are aware of the issue with the badge emails resending to everyone, we apologise for the inconvenience - learn more here.
As described in this thread, the new version of dropbox backup is great but has a major downside: files stored via backups can no longer be accessed within the dropbox app! Quoting @mbriney from ...
Backup folders access using app setting should be definitely decided by user. if some users has concern, they can disable however disabling such functionality which has been available is a big trouble for current users who are accessing to Backup Computer's Desktop, Downloads, Documents folders etc. Please bring it back.