Simple, Easy to manage and very light weight Contact form plugin for WordPress from ThinkOverIT (www.thinkoverit.com)
It's best to use the build in delete function of wordpress. That way all the stored data will be removed and no orphaned data will stay.
You can link back to our site at http://thinkOverIT.com . We will take it as an appreciation and love for our plugin.
Post it at the plugin post: http://thinkoverit.com/ThinkIT-WP-Contact-Form-Plugin/