To mark one email in the folder as read, select the email in the list of emails in the workspace and view it in the Reading pane or in a new tab.
To mark all emails in the folder as read, click the avatar on the unread email mini panel in the list. If necessary, select all the unread emails in the active folder and click Mark as read on the Toolbar.
To mark all emails in the folder as unread, click the avatar on the read email mini panel in the list. If necessary, select all the unread emails in the active folder and clickMark as unread on the Toolbar.