I have an email address that is constantly being added to the bounce list.

My user registration@pccua.edu is re-added to the bounce list almost immediately after removing it. Please advise.

The email address is no longer on our bounce list. I think you have removed it already. I checked some of your forms and I don't see any issues with your email settings. I would suggest checking the following guide and make sure to follow our recommendations to prevent this from happening again. 

https://www.jotform.com/help/208-How-to-Prevent-Email-Bouncing-Related-Issues

It is also important to check whether Jotform is whitelisted. You are on a school domain so I think there's a certain setting that is blocking Jotform. 

Let us know if you need further assistance.