1) In read mode, you will see a "Mosspaper" add-in at the top ribbon. 

2) Sign into your Mosspaper account. If you don't have an existing account, you can sign up for an account. 

3) There will be a panel to sync an email message in your inbox.  Select a quote or contract to sync the incoming message into. 

4) Click on "sync". 

5) Your email message will be saved to the quote or contract. In the mosspaper app, it will show up as a message in the "comment" box. You have the option to delete the message or see the full original message.