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

• administration
• bounce-back
• custom-mail-flow-rule
• dead
• email-access
• i
• missing
• oiam-informational-adfs
• procedure
• troubleshooting

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.