In this Tutorial we are going to check the required steps for an end-user to check its quarantine messages in EOP. In some customers, I see the Service Desk Team waiting on the mail administrators to see if a message for a specific user is stuck on the quarantine, however they have the ability to check and perform the initial analysis by using the end-user credentials.
Several companies do not allow the end-users to receive Quarantine Messages, but if they have ADFS or Password Synchronization, this Tutorial will work like a charm.
The first step for the end-user is to go to the https://admin.protection.outlook.com/quarantine page, after authenticating the quarantine page will be similar to the one listed bellow.
If you click on the first button (Message Details) the end-user can see the message itself and two options: release and release and report as false positive.
On the right-side, after selecting any given message we can check the header of the message.
Also, check the message (having option to see in Plain View and HTML View).