Mailbox

Mailbox [Project Mailbox, Inbox]

This setting: Allows users to:
Delete Delete the external emails in the Mailbox
Reply Reply to the external emails in the Mailbox
View View the external emails in the Mailbox, and also in the Public Items node
Create/Manage Folders Create and update folders in the Mailbox

Mailbox [Project Mailbox, Unpublished Attachments]

This setting: Allows users to:
Publish Publish attachments
Download Download attachments
Open Open attachments
View View attachments