On the User Menu, click Messages
On the messages page, click on Inbox to view all messages. Click on the Subject title or Read under Actions to view the message. It can be deleted using the Delete action.
The Sent section will compile all messages that you have sent in the Commons.
To send a message, click on Compose. In the Send To section, start typing the name of the user you want to send the message to. A list of names will appear, click on the name to send to. After the name is selected, then compose the message, filling in the subject and message fields, submit.