This plugin is not maintaned for a long time. If you still see it usefull and have any fixes, feel free to submit a pull request! Better have a look at Formbuilder
This plugin is based on the code from @mookymook (http://www.grafyweb.com/).
Info: http://www.pimcore.org/forum/discussion/266/plugin-contact
Original source code: http://pimcontact.svn.sourceforge.net/viewvc/pimcontact/