Every content item in this list is tagged with all the required labels:

• exchnage
• federated
• groups
• offfice365
• office365
• oms34
• powershell
• pst
• publishing
• quarantine
• skin
• skinning

To add a label to the list of required labels, choose '+ labelname' from Related Labels.
To remove a label from the required labels, choose '- labelname' from above.