Disable 'Upload via Email' Admin Setting Globally
Currently, the 'Upload via Email' setting (that's shown on the Folder Settings page) is always enabled, and admins have no way of disabling this setting globally in their instance.
REQUEST: Add a new option to Admin Console -> Enterprise Settings -> Security -> Uploads that gives Admins the ability to disable this setting/option globally.
9
votes

Please see https://community.box.com/t5/Box-Product-Updates/Enable-or-Disable-Email-Uploads-at-an-Enterprise-level/idi-p/71365 for additional details!