After using the BlogEngine Newsletter, I noticed that it was not easy to unsubscribe from the newsletter, so I went to task and produced an enhanced Newsletter so you can unsubscribe from the newletter from the incoming email.
As a result I also increased what is being sent on the e-mail, to provide more information for the subscriber.
One other feature I added was that is a post is saved but in an unpublished state an e-mail is sent to the administrator informing them of a new unpublished post.
Upzip this attached file and place the folder in the widgets directory of the application. Be sure to over right or replace the existing Newsletter otherwise people will receive two emails for each post.