Redmine

Because I have some projects where I have some Testers who don't looking there everytime I would like to have an option when a new beta-version has finished to notify the role of the testers at this project.
For example by a simple form in the configuration (which is only viewable by the project administrators, or as a project module with a new permission setable to any role to allow sending mails to project roles) So Developers can send notifications to Testers or right before the release to the quality management.