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

• apple-mail
• attach-file
• distribution-list
• excel-file
• exporting
• list-serv
• mail-app
• mass-mail
• send-block

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.