Custom Post Status to "Disapprove"

I'm working with the "events manager" plugin and I need help to implement the following:

1. Admin can select custom post status of "Disapprove" which will automatically send an e-mail to the author of the post that it has not been approved and then automatically delete the post.

I'm aware that the #12706 ticket was created 5 years ago. Is there any way to implement this?