Submitting a file to Comodo

Hello, I was wondering what happens when you submit a file that is unknown to you to Comodo to review and then you either accept or block it. If you block it and Comodo later sees it as safe, doe sit get unblocked or vise-versa?

It will get blocked as you insisted. this is where the sanbox comes in handy so the unknown can run in the sandbox until you or comodo allows it out.