Put uploader's name in email subject
Put name of person who uploaded files in subject field of notification emails for easier identification.
E.g. instead of "New files in [folder]!" make it "New files from [name] in [folder]"
Email software that use threading of messages (e.g. Gmail) will clump all that day's uploaded files into one email thread, because the subject is always the same. This is making it very difficult to track and manage incoming files.