If you'd like multiple email addresses to be notified when you get new document visits you can use our IFTTT or Zapier integrations. You can think of both services like internet glue: they connect different internet services. With these two integrations you can set up workflows so that when you get a new DocSend visit, a new email is sent to a specific person or set of people. You can even do things like get a push notification or SMS and even filter by visits where the visitor reads 100% of your document.
Some examples from Zapier:
Some examples from IFTTT: