How to block users from releasing messages in quarantine?

AFAIK there’s no way of doing this atm! It’s kind of a on or off thing! If they are able to access their quarantine the have all options!

There is a user voice for this one here, but not many votes though! There might be another one so check that!

https://office365.uservoice.com/forums/273493-office-365-admin/suggestions/33465280-restricting-end-users-from-releasing-quarantined-e

Adam