When does a email adress go into the bounce list?

There are many reasons but most of the time when the receiving server rejects the email coming from JotForm or AmazonSES, our email sending service provider. Everything is explained in this article http://www.jotform.com/help/262-How-to-remove-your-email-address-from-bounce-list.

This also explains how to remove emails from the bounce list.

Thanks!