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

• administration
• bounce-back
• busy
• dead
• dmarc
• info
• meetings
• migrated-groups
• office365
• people-search
• sign-out
• visible

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.