Scheduled Jobs / extension - automatic Email

Hi, i want to implement an Action plan for reoccurring tasks for our kindergarten.

I have created an application therefore and now I want to implement that an email is sent to the user when the date is reached.

Is there a way how I can implement that on myxwiki, because I think I have no programming rights for the scheduler. Are there extensions which are already installed on myxwiki which can be used?