Sometimes you may want to send your newsletter to more email addresses after it's been published.
In a published newsletter, click the Options menu in the top right corner of the Author (where you build the newsletter)
Choose Send To
In the popup window that appears, enter up to 10 email addresses, one on each line
Optionally specify if you want to subscribe them to your subscription list
The newsletter will be sent to them as if they were subscribed to the newsletter.