Simply MFA enablement to provide a simple SINGLE notice to collaborators that MFA was enabled for company "X"
Enabling MFA for external collaborators caused mass emails to each external collaborator for every folder they are invited to, so a collaborator invited to 100 unique folders would be sent 100 emails, and would in turn click 'accept' in those emails, causing 100 emails to be send back to the content owner that it was accepted. This appears to happen even if the collaborator has already accessed the file (Triggered by enabling MFA).
Instead of emailing for every instance of an invited collaborator email address on every folder, instead prompt them to setup MFA only when they access a file or folder that requires MFA and only if they have not already setup MFA, or optionally, send only a SINGLE email to an external collaborator indicating that MFA had been enable by a specific company and if they wanted to access any of those files, the would need to setup MFA by accessing their Box account.
One email, rather than hundreds or thousands.