Receiving Documents Sent as a Message
When a document is sent to you as a message attachment, you'll receive an email with a link to access it.
Click View this message in admation to access it. You can also head to Messages to access your messaging inbox, where a copy of that message is stored.
Click Download File to view a copy of the file that's been sent to you. You'll also have the option to Go To Project if you're part of the project team.