The Contact Form plugin for Redmine and ChiliProject adds contact forms allowing to send emails to site owners (top menu item) and/or site members (new link in user profile). The contact form can be configured to meet your needs and supports custom fields.
In addition the plugin supports changing the default value for the "Hide my email address" option in the user profile.
Author: Andriy Lesyuk
Will drop the "Project" field
An announcement of "Project" field removal (actually replacement).
Contact Form 0.0.1
Whenever you are a site owner or a project member the Contact Form plugin will provide a form for writing an email message to you. Support of custom fields will also let you collect some basic information about the request.