Trawler is a django app designed to help audit a group of people or organization in terms of phishing awareness.
When used as directed, you can launch your own phaux-phishing campaign and track the members of your organization that actually follow the link or load the images (either by default or by choice depending on how their mail client is configured).
This software was largely inspired by a presentation given by Lance Spitzner in which he described his approach to phishing awareness.
The source code is available at https://bitbucket.org/onelson/django-trawler under the MIT license.
It is currently released in an alpha state, which is to say it's basically functional but subject to change as issues are reported. If you have any issues, or feature requests, please post them to the issue tracker.