In addition to collaborating on email, you may also want to collaborate on documents using a site mailbox. You can easily share documents with others via email.
Important: When users view a site mailbox in Outlook, they will see a list of all the documents in that site’s document libraries. Site mailboxes present the same list of documents to all users, so some users may see documents they do not have access to open.
To add documents by using your site mailbox, simply drag the documents into an email message and they are added to the document library on your SharePoint site.
Tip: Did you know you can also use a site mailbox to coordinate team email?