JugReviews - SMTP smart testing

I'm still working on the JugReviews, my module for JugSardegna administration of reviews for books. In these days I spent some time on write junit-tests for the mails communications and reminders. I found a very interesting project dumbster: "The goal of this project is to develop a very simple SMTP server that responds to SMTP requests and makes received messages available for query at a later time. All useful features for a SMTP server that can be used in an automated testing suite." This is very good for JugReviews in which email communications are on of the functional principal parts. Some links:

http://sourceforge.net/projects/dumbster/
http://quintanasoft.com/dumbster/javadoc/index.html

http://www.javaworld.com/javaworld/jw-08-2003/jw-0829-smtp.html?page=1

The project is not very active on sourceforge but working with Dumbster is better than to switch from eclipse to gmail searching for messages!