Mark Conversation as Read or Unread
You can view all read and unread messages in your Inbox. You can also filter messages to show only unread messages.
In Global Navigation, click the Inbox link.
All unread messages have an indicator next to the message. Once a conversation has been read, the grey dot changes to a white circle.
If you want to mark a conversation as read or unread, click the indicator.
Mark Multiple Conversations as Read or Unread
You can mark multiple conversations as unread or read by pressing the command key (Mac) or the control key (Windows) while clicking multiple messages, or by selecting the message checkbox .
Locate and click the settings icon and choose Mark as unread link .
If you select multiple unread messages, you will see Mark as read link .
To view only unread messages, open the the Inbox drop-down menu. Select the Unread link.